Plant succession on a subalpine earthflow in Colorado - J. H. Langenheim (Ecology, 1956)
The statistical concept of home range as applied to the recapture radius of the deer-mouse (Peromyscus) and the calculation of homerange and density of small mammals is presented.

Radioactive ages of minerals from the Brown Derby Mine and the Quartz Creek Granite Near Gunnison, Colorado - L. T. Aldrich; G. L. Davis; G. R. Tilton; G. W. Wetherill (Journal of Geophysical Research, 1956)
Radioactive age determinations have been made on 16 minerals from the Brown Derby pegmatite and the Quartz Creek granite. A high degree of consistency has been found among the Rb-Sr ages measured on micas and feldspars. A similar degree of consistency exists in the K-A ages of micas. These consistencies are indicative of the usefulness of measurements of the decay of K40 and Rb87 in determining relative ages of igneous rocks. U-Pb and Th-Pb ages determined from minerals obtained from the pegmatite and granite were not concordant. Different minerals showed different types of partial separation of parent and daughter elements. Comparisons of Rb-Sr and K-A ages with concordant U-Pb ages have been made on other pegmatites. The measurements are most consistent with an age of 1350±100 m.y. for the pegmatite and the granite.

Cylindrical Structures in Permian(?) Siltstone, Eagle County, Colorado - John W. Gabelman (The Journal of Geology, 1955)
In the East Brush Creek area a calcareous siltstone bed contains numerous cylindrical structures normal to the bedding. The bed is 35 feet above the "Shinarump" conglomerate of other workers in the region. The conglomerate is here considered Permian(?) rather than Triassic, because the Shinarump of Arizona and Utah probably pinches out west of the area. The siltstone bed is in the transition from underlying continental conglomerates and sandstones to overlying marine red beds, and a littoral or estuarian environment is indicated. The cylinders occur throughout the total thickness of the bed but are restricted to the immediate locality. Cylinder contacts are sharp but slightly irregular, and the material they contain is identical to the surrounding sediment. A circular section of uniform diameter is commonly maintained throughout the length. The greatest exposed length is 4 feet. Diameters range from 1/2 to 8 inches. The cylinders are interpreted as fossil diagenetic springs. The bedding in pipe channels was destroyed by particle flotation in meteoric water rising under local hydrostatic pressure.

Our Upper Colorado River Project - A. D. Moinat (Science, 1955)

Relative incidence of blood parasites in robins of central New York and of the high Rockies - R. D. Manwell (Journal of Protozoology, 1955)
SUMMARY. A total of 60 robins, nearly equally divided among eastern and western species (Turdus migratorius migratorius and T. m. propinquus respectively), and also almost evenly divided between juvenile and adult birds, has been studied for the relative incidence of blood parasites. Malaria of four species was found among the eastern robins, in most instances caused by Plasmodium vaughani. P. relictum (especially of the variety known as matutinum) was next in frequency. Leucocytozoon was the next most common parasite. Among western robins only one case of malaria (P. vaughani) was found, but other blood parasites were much more common than in the eastern series, especially Leucocytozoon, which occurred in well over half the birds. Juvenile birds, even nestlings, seldom found infected with any of these parasites in the east, were very frequently infected in the western group. The explanation of these differences in incidence is believed to be chiefly differences in the distribution of still unknown vectors.

Response : Our Upper Colorado River Project - Paul B. Sears (Science, 1955)

The blood Protozoa of 17 species of Sparrows and other Fringillidae - R. D. Manwell (Journal of Protozoology, 1955)

Territorial behavior in fall migrant rufous hummingbirds - Kenneth B. Armitage (Field and Study, 1955)

Parasitological and ecological survey of selected kettles in the Gothic area - R. E. Pooley (1955)

Magnetite in redbeds and associated rocks - R. L. Langenheim (Bulletin of the American Association of Petroleum Geolosits, 1955)

Flora of the Crested Butte Quadrangle, Colorado - J. H. Langenheim (Madro¤o, 1955)

Additions to the flora of Colorado. II - W. A. Weber (University of Colorado Studies Series in, 1955)

Neotenic salamanders, Ambystoma tigrinum, in the Elk Mountains of Colorado - L. R. Levi; L. R. Levi (Copeia, 1955)

An Insect Pompeii - R. D. Manwell (Science Monthly, 1955)

Habitat and structure of Veratrum speciosum - S. Anderson (1954)

Report on Virginia Mountain - E. Litweiler (1954)

Spruce-fir climax forest - S. V. De Boer (1954)

Analysis of materials in pika haystacks - B. A. Starner (1954)

Ecological report on Virginia Mountain with emphasis on plant life - S. Anderson (1954)

Virginia Basin trip - J. Price (1954)

Beavers - C. Carman (1954)

Field trip report on the Biological Research Forest of Gothic - B. A. Starner (1954)

A survey of scat as related to animal habitat in the Gothic area - Gunnison County, Colorado - E. Litweiler (1954)

Ecological report concerning the spruce-fir climax forest and related areas - P. E. Burgess (1954)

A striking delimitation of sagebrush and grassland - J. Price (1954)

Alpine tundra climax community and Virginia Basin - G. W. Heisey (1954)

Report on disturbed and undisturbed aspen communities - G. W. Heisey (1954)

A comparison of butterfly populations on adjacent forest-stream, flowered slope, and sage hills in the Gothic Area; A study of factors determining butterfly flight - P. E. Burgess (1954)

Transect of igneous talus - S. V. DeBoer (1954)

Life in the Early Mining Camps of Colorado - C. J. Smith (University of North Texas Digital Library (University of North Texas), 1954)
The story of the advancing American frontier has unending interest. Perhaps one of the most colorful and unusual frontier developments was that of the mining frontier in the Rocky Mountains of Colorado. During the years following the discovery of gold in 1858 and the early 1880's occurred an almost unprecedented evolution from a primitive pioneer society to complex industrial development.

Biological forest - C. Carman (1954)

Glacial advances and soil development, Grand Mesa, Colorado - J. L. Retzer (American Journal of Science, 1954)

Notes on Colorado Phenacomys and picas - W. O. Pruitt (Journal of Mammalogy, 1954)

Blood parasites of birds of the high Rockies - R. D. Manwell (Journal of Parasitology, 1954)
As far as I am aware, there are no published reports of the blood parasites of birds of the High Rockies. Since environmental conditions are quite different in such regions, with very short summers, uniformly cold nights (often with heavy frost), and low daytime humidity combined with moderate warmth and much sunshine, with consequent differences in the species of blood-sucking arthropods (possible parasite vectors) encountered, it seemed worth while to examine all birds available, even though many of them migrate during the winter either to lower altitudes or more southern ranges. There is also a somewhat different avian fauna at high altitudes. This study was done at the Rocky Mountain Biological Laboratory at Gothic (near Crested Butte), Colorado, at an altitude of 9,500 feet. Some of the birds were brought in from neighboring areas, up to 11,000 feet. The cliff swallows for the most part were taken from under the eaves of a small school building at Parkvale, a tiny hamlet a few miles west of Canon City, near the foot of Monarch Pass; some however were obtained under a cliff near Cement Creek, near Taylor Reservoir, some 25 miles from Gothic. Birds were either trapped or shot, or-in the case of juveniles-removed from the nests. Blood smears, supplemented in some cases by organ smears, were stained with J.S.B. All blood smears were examined under oil for a minimum of 5 minutes. The organ smears, and in some cases the blood smears also, were often studied much longer. Table 1 gives a summary of the species of birds included in the survey, and of the parasites found. The numbers are not large, but some of the results are of considerable interest and it seems worth while to report them, as the study cannot be continued in the near future.

Gray Bull Mammals from the Knight Formation in Moffat County, Colorado - Malcolm C. McKenna (Journal of Mammalogy, 1954)
Journal Article Gray Bull Mammals from the Knight Formation in Moffat County, Colorado Get access Malcolm C. McKenna Malcolm C. McKenna Department of Paleontology, University of California, Berkeley Search for other works by this author on: Oxford Academic Google Scholar Journal of Mammalogy, Volume 35, Issue 4, November 1954, Page 581, https://doi.org/10.2307/1375587 Published: 01 November 1954 Article history Received: 13 October 1953 Published: 01 November 1954

Correlation of Maroon formation in Crystal River Valley, Gunnison, Pitkin, and Garfield County, Colorado - R. L. Langenheim (Bulletin of the American Association of Petroleum Geologists, 1954)
The Gothic and Maroon formations are the most significant Upper Paleozoic lithogenetic units between Copper Creek and Glenwood Springs, Colorado. Thin limestones were traced southward from Glenwood Springs to Redstone and furnish local horizons of time-rock correlation. They do not, however, mark the limits of useful lithogenetic units. The projected horizons of the Schoolhouse sandstone and the South Canyon Creek dolomite occur about 2,000 feet below the pre-Jurassic unconformity near Carbondale, where their position is occupied by laterally equivalent redbeds. A local basin in the Central Colorado basin in the Carbondale area is suggested by gypsum accumulation, marked thickening of the Maroon formation, and a pre-Jurassic structural basin. Restriction of the Central Colorado basin in the Treasury Mountain dome area is indicated by basal conglomerate in the Belden shale, abundant reworked Pennsylvanian rocks in the Maroon formation, marked thinning of the Maroon formation, non-deposition of marine tongues within the Maroon formation, and a pre-Jurassic structural high. Lateral equivalence of the upper Maroon and lower State Bridge siltstone is suggested by intertonguing finer-grained redbeds in the eastern outcrops of the upper Maroon formation.

GEOLOGY OF THE WEST-CENTRAL PART OF THE GUNNISON PLATEAU, UTAH - CLYDE T. HARDY; HOWARD D. ZELLER (Geological Society of America Bulletin, 1953)
Research Article| November 01, 1953 GEOLOGY OF THE WEST-CENTRAL PART OF THE GUNNISON PLATEAU, UTAH CLYDE T HARDY; CLYDE T HARDY UTAH STATE AGRICULTURAL COLLEGE, LOGAN, UTAH; U. S. GEOLOGICAL SURVEY, WASHINGTON, D. C. Search for other works by this author on: GSW Google Scholar HOWARD D ZELLER HOWARD D ZELLER UTAH STATE AGRICULTURAL COLLEGE, LOGAN, UTAH; U. S. GEOLOGICAL SURVEY, WASHINGTON, D. C. Search for other works by this author on: GSW Google Scholar Author and Article Information CLYDE T HARDY UTAH STATE AGRICULTURAL COLLEGE, LOGAN, UTAH; U. S. GEOLOGICAL SURVEY, WASHINGTON, D. C. HOWARD D ZELLER UTAH STATE AGRICULTURAL COLLEGE, LOGAN, UTAH; U. S. GEOLOGICAL SURVEY, WASHINGTON, D. C. Publisher: Geological Society of America Received: 17 Oct 1952 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1953, The Geological Society of America, Inc. Copyright is not claimed on any material prepared by U.S. government employees within the scope of their employment. GSA Bulletin (1953) 64 (11): 1261–1278. https://doi.org/10.1130/0016-7606(1953)64[1261:GOTWPO]2.0.CO;2 Article history Received: 17 Oct 1952 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation CLYDE T HARDY, HOWARD D ZELLER; GEOLOGY OF THE WEST-CENTRAL PART OF THE GUNNISON PLATEAU, UTAH. GSA Bulletin 1953;; 64 (11): 1261–1278. doi: https://doi.org/10.1130/0016-7606(1953)64[1261:GOTWPO]2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract A detailed study of the west-central part of the Gunnison Plateau, Utah, has disclosed stratigraphic and structural relations important in the geological history of central Utah. The area mapped includes the eastern half of the Axtell No. 2 quadrangle, Manti area (U. S. Dept. of Agriculture, Soil Conservation Service).The bedrock ranges in age from the Arapien shale (Upper Jurassic) to the Green River formation (Eocene). The North Horn formation (Cretaceous-Tertiary), the Flagstaff limestone (Paleocene-Eocene), and the Green River formation (Eocene) successively overlap the Arapien shale and the Indianola group in the northern part of the area. In the southern part of the area, the North Horn formation and the Flagstaff limestone successively overlap the Price River conglomerate with angular discordance. The latter relation establishes a post-Price River and pre-North Horn orogenic movement in central Utah.A conspicuous west-dipping monocline, broken by many high-angle faults and a graben, extends along most of the western margin of the area. This structure is similar to the monocline and graben in the Wasatch Plateau to the east. At one point in the northern part of the area, the North Horn and the overlying Flagstaff oppose the Arapien shale across a high-angle fault. The Green River formation extends across the fault and overlaps the Arapien. This relation suggests faulting between Flagstaff and Green River time because the Colton formation, which normally occurs between the Flagstaff and Green River, cannot be differentiated in this immediate area.Numerous small intrusive masses of monzonite porphyry of post-Upper Jurassic age occur in the Arapien shale. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.

Notes on the mammals of the Gothic region, Gunnison County, Colorado - J. S. Findley; N. C. Negus (Journal of Mammalogy, 1953)
Journal Article Notes on the Mammals of the Gothic Region, Gunnison County, Colorado Get access James S. Findley, James S. Findley Museum of Natural History, University of Kansas, Lawrence, KansasDepartment of Zoology, Ohio State University, Columbus, Ohio Search for other works by this author on: Oxford Academic Google Scholar Norman C. Negus Norman C. Negus Museum of Natural History, University of Kansas, Lawrence, KansasDepartment of Zoology, Ohio State University, Columbus, Ohio Search for other works by this author on: Oxford Academic Google Scholar Journal of Mammalogy, Volume 34, Issue 2, May 1953, Pages 235–239, https://doi.org/10.2307/1375625 Published: 01 May 1953 Article history Received: 24 April 1952 Published: 01 May 1953

Expansion of the Colorado River Aqueduct System - Robert B. Diemer (Journal AWWA, 1953)

The white-crowned sparrow and other birds of the willows at Gothic - N. Carr (1953)

Taxonomic notes on Oeneis uhleri Roskirt (Lepidoptera, Satyridae) - F. M. Brown (Amer Mus Novitates, 1953)

Plant-Ecological Reconnaissance of the Crested Butte Area, Gunnison County, Colorado - J. H. Langenheim (1953)

A brief survey of beaver activity in the Gothic Natural Area near Crested Butte, Colorado - J. Brigham; R. Donohoe (1952)

The taxonomy of the flowering plants of the Gothic Natural Area and their habitat relationships - G. A. Largent (1952)

The Gothic Natural Area - H. A. McCullough (Living Wilderness, 1952)

Essays in Honor of Harry Gunnison Brown, Ph.D., L.H.D., On the Occasion of His Retirement from the University of Missouri Preface - Pinkney C. Walker (The American Journal of Economics and Sociology, 1952)

Pennsylvanian and Permian stratigraphy in Crested Butte Quadrangle, Gunnison County, Colorado - R. L. Langenheim (Bulletin of the American Association of Petroleum Geologists, 1952)
Structural geology in the Crested Butte Quadrangle is more complex than previously reported. Outcrop relationships previously explained as unconformities are the result of large faults at Hunter's Hill and in Slate River valley. The following lithologic assemblages are recognized in the Absarokan rocks of Colorado: black shale and limestone, gypsum, fine buff clastic rocks, coarse buff reworked clastic rocks, coarse red reworked clastic rocks, coarse red arkosic clastic rocks, and red siltstone. All of these except the gypsum and red siltstone assemblages are present in the Crested Butte Quadrangle. The Belden shale is the black shale and limestone assemblage, and was deposited unconformably upon the Leadville limestone during the beginning of the invasion of the Absarokan seas. A new name, the Gothic formation, is introduced for the overlying coarse and fine buff clastic rock assemblages. The type section is at Copper Creek. This formation was deposited under predominantly marine conditions as the Ancestral ockies and the Central Colorado trough became sharply differentiated. The Maroon formation is restricted to the coarse red arkosic and reworked clastic rock assemblages above the Gothic. It was deposited as tectonic differentiation continued, but after the seas had withdrawn from the area. Red siltstone, not present in the Crested Butte district, was deposited during the final reduction of the Ancestral Rockies after tectonic differentiation ceased. To complete the cycle the Jurassic Entrada sandstone was deposited unconformably upon slightly deformed Absarokan rocks. The Gothic thins toward the northeast with concurrent thickening of the Maroon. Also the Maroon is absent in the southwest part of the area. These facts indicate a progressive northeastward shift of the site of deposition i this area during the Absarokan. Absarokan fossils from this area, separated on the basis of the type of enclosing rock, fall into more or less distinct groups. Although the fossils are mostly of Des Moinesian age, there are a few Morrowan species in the Belden and many post-Des Moinesian species in both the Belden and Gothic. It is suggested that the Morrowan species here may be restricted to black shale and limestone producing End_Page 543------------------------------ environments, and the post-Des Moinesian species here to environments characteristic of nearly filled or dried up seas. Their presence at Crested Butte may then be explained by the existence of such environments in this area during Des Moinesian time.

Publications of Harry Gunnison Brown, 1907–1951 - Pinkney C. Walker (The American Journal of Economics and Sociology, 1952)

Trapping records for RMBL, Gothic, Colorado, 1950-1951 - J. B. Calhoun (North American Census of Small Mammals, 1951)

Notes on the Ecology of Weasels in Gunnison County, Colorado - Horace F. Quick (Journal of Mammalogy, 1951)
Journal Article Notes on the Ecology of Weasels in Gunnison County, Colorado Get access Horace F. Quick Horace F. Quick Univ. of Maine, Orono, Maine Search for other works by this author on: Oxford Academic Google Scholar Journal of Mammalogy, Volume 32, Issue 3, August 1951, Pages 281–290, https://doi.org/10.2307/1375659 Published: 01 August 1951 Article history Received: 16 August 1950 Published: 01 August 1951

Late Devonian fresh-water fishes from the western United States - R. E. Denison; Sharat Kumar Roy; Lillian A. Ross (Chicago Natural History Museum eBooks, 1951)
ANTIARCHIThe peculiar armored placoderm, Bothriolepis, is a characteristic element of Late Devonian fresh-water faunas throughout much of the world.It is common in the western United States, but its remains are usually fragmentary or poorly preserved, so that identi- fication is difficult.Two species are to be distinguished in this area.Bothriolepis coloradensis Eastman: The original description of this species by Eastman in 1904 was based on material collected by Cross in southwestern Colorado.Stensio (1931, p. 11; 1948, p. 224) concluded from Eastman's figures with some justification that it did not belong to Bothriolepis, but to the Remigolepidae.East- man's figures, however, are quite inadequate to characterize this form, and a study of the type, as well as new material collected for Chicago Natural History Museum, clearly shows that this is Bothrio- lepis and possibly a valid species.Stensio referred this species to the Remigolepidae because East- man's figures (1904, figs. 1, 4) suggest that the pectoral fin was not divided into two articulated segments.The type (U.S.N.M. no.16852) is a ventral trunk shield exhibiting the inner surface, with fragments of both pectoral appendages in place.The more com- plete appendage, that of the left side, does not preserve the articula- tion, but shows quite convincingly that one was present between

Note on the herpetology of the Elk Mountains, Colorado - A. P. Blair (Copeia, 1951)

Black Canyon circle trip: lower zones - M. Levine (1951)

The Exploration of the Colorado River in 1869 and the Exploration of the Colorado River and the High Plateaus of Utah in 1871-72. - Ray Allen Billington (The American Historical Review, 1951)

Distribution of the Carabidae (Coleoptera) of Boulder County, Colorado - Verna Lee Haubold (American Midland Naturalist, 1951)
The effect of altitude on the distribution of insects has not been widely studied, and except for isolated observations, no work has been done on the vertical distribution of the ground beetles (Carabidae). It is the purpose of this thesis to show the distribution of the Carabidae throughout the altitudinal zones of Boulder County, Colorado. The Carabidae is a large and important family of Coleoptera and is world-wide in its distribution. The species are predatory and many are definitely beneficial since they attack other insects which are plant pests. Because of this carnivorous habit, the carabids are dependent only indirectly upon vegetation for their existence.

Pennsylvanian and Permian Stratigraphy in the Crested Butte Quadrangle, Gunnison County, Colorado - R. L. Langenheim (1951)

Acute malaria in a Canada Jay of the high Rockies - R. D. Manwell (Journal of Parasitology, 1951)

The zones of vegetation of west-central Colorado - N. Clee (1950)

Temperature and pH of water of lakes and streams and effect on organisms in the subalpine zone - E. Grula; N. Clee (1950)

Plant and animal succession in an old burn - R. Demerec (1950)

Novel aspects of the life history of two Ambystomas - W. L. Burger (Journal of the Tennessee Academy of Science, 1950)

Party and Pressure Politics in Arizona's Opposition to Colorado River Development - Malcolm B. Parsons (Pacific Historical Review, 1950)

California and the Colorado River - Desmond G. Kelly (California Law Review, 1950)

Nesting behavior of the American dipper in Colorado - H. W. Hann (Condor, 1950)
Journal Article Nesting Behavior of the American Dipper in Colorado Get access Harry W. Hann Harry W. Hann Department of Zoology and Rackham School of Graduate Studies, University of Michigan, Ann Arbor, Michigan Search for other works by this author on: Oxford Academic Google Scholar The Condor, Volume 52, Issue 2, 1 March 1950, Pages 49–62, https://doi.org/10.2307/1364753 Published: 01 March 1950

S. S. Grand Mesa repaired her Bottom Shell Plates whichwas damaged by Sea Casualty - Masao Saiki (Journal of Zosen Kiokai, 1950)
The vessel entered to No. 1 dock on the 18th March for repair the bottom shellplates which had been damaged by grounding at Nojimazaki.At the first schedule, this was temporary job, but later changed to permanent repairand undocked on the 15th August.Meanwhile many troubles occurred by the reason of food shortage, material problem, all mechanical apparatus, D. C. machine and welding rod etc.By the way, we have got material and welders who passed qualification test undersurvey of A. B. surveyor, Mr. Swan.We preceded job under survey of Mr. Swan, and job was done by all welding anddamaged area was 6, 500 sq. ft. approximately, therefore this job is the first and biggestwork in Japan post-war.I believe, we made a new record about tank water test because time is very shortand very few leakage.The work was approved by A. B. surveyor Mr. Swan after completion of job.

Cutting the Colorado River Pie - Richard G. Baker (Journal AWWA, 1949)

An Archaeological Survey of the Blowouts of Yuma County, Colorado - Paul H. Gebhard (American Antiquity, 1949)
Ever since Yuma points were recognized as being particularly ancient, Yuma County, Colorado has been a logical area of interest. Nevertheless, until 1941 the county had received scant attention from professional archaeologists, with the sole exception of a partial surface survey by Dr. E. B. Renaud. On the other hand, there had been considerable collecting by local residents, most particularly by Perry and Harold Andersen of Yuma, Colorado, who have amassed a large and valuable collection including numerous Folsom and Yuma points.In 1941 Yuma County was still liberally spotted with blowouts resulting from wind erosion of the sandy soil consequent upon the previous drought. Conditions were, for the archaeologist, optimal. Thanks to Dr. Donald Scott, who arranged that expenses be defrayed by the Peabody Museum of Harvard University, my wife and I were enabled to spend part of the summer and early fall in Yuma County and adjacent portions of other counties.

Mammals at Gothic, Colorado - P. Wilson (1949)

Legal Aspects of the Development of the Colorado River - Edward W. Clyde (Utah Law Review, 1949)

Physiography and Plant Ecology of a Subalpine Earthflow, Gunnison County, Colorado - J. H. Langenheim (1949)

Schizorchis ochotonae, n. gen., n. sp. of Anoplocephalid cestode - M. F. Hansen (American Midland Naturalist, 1948)

A comparison of the plant and animal life in a coniferous climax forest and an aspen sub-climax forest employing various methods of study; general animal study included - H. W. Diserens (1948)

Notes on Colorado River Basin Archaeology - Gordon C. Baldwin (American Antiquity, 1948)
A recent article in American Antiquity entitled “Symposium on River Valley Archaeology” summarizes the present status of one of our most important and urgent problems in American archaeology today. Additional information concerning this subject, particularly with reference to the progress made in the Colorado River Valley, should be mentioned at this time.The National Park Service has been concerned with survey and salvage operations in proposed reservoir areas along the Colorado River and its tributaries for many years. Long before final construction work was completed on Hoover (formerly Boulder) Dam in 1935, several C.C.C. archaeological crews were at work under National Park Service direction in the areas to be inundated, particularly along the Virgin and Muddy rivers in southeastern Nevada.

Plant succession on fallen logs in a virgin sprucefir forest - H. A. McCullough (Ecology, 1948)

Colorado River Irrigation - William H. Kelly (KIVA, 1948)

Egrets Nest along Colorado River - Gale Monson (The Auk, 1948)

Subsurface Geologic Cross Section from Baca County to Yuma County, Colorado - John C. Maher (Bulletin (Kansas Geological Survey), 1948)

Subsurface Geologic Cross Section from Trego County, Kansas, to Cheyenne County, Colorado - Jack B. Collins (Bulletin (Kansas Geological Survey), 1947)

The Colorado River—The Southwest's Greatest Natural Resource - S. Morris (Journal AWWA, 1947)

Fiscal Policy, Taxation and Free Enterprise. Harry Gunnison Brown - Kenyon E. Poole (Journal of Political Economy, 1947)

Case history of the Fort Collins Extension (oil field), Larimer County, Colorado - John Human Wilson (Geophysics, 1947)
Abstract The results of a gravity meter survey of the Fort Collins field, Larimer County, Colorado, both before and after elimination of regional effects, is presented together with subsequent seismograph and subsurface studies which led to the development of a small northward extension of the Fort Collins oil field. Other geophysical work in the area is reviewed.

Yuma and the Colorado River - C. G. Ekstrom (Journal AWWA, 1947)

The proposed Colorado River developments - William S. Peterson (Electrical Engineering, 1947)
THE Colorado River is a muddy stream that constitutes the lifeblood of the Pacific Southwest, the most important feature of which is the ultimate scarcity of its water or its ultimate inability to supply the potential needs of the communities dependent on it for irrigation and domestic water supply. The next feature of importance is the potential power capability of the river and its relation to the power needs of this same Pacific Southwest area.

Subsurface Geologic Cross Section from Scott County, Kansas, to Otero County, Colorado - John C. Maher (Bulletin (Kansas Geological Survey), 1947)

Notes on Bufo boreas (B. & G.) from the Gothic region of Colorado - W. L. Burger; A. N. Bragg (Proceedings of the Oklahoma Academy of Science, 1947)

Comparisons of invertebrate populations of the herb layers of the alpine and subalpine zones - M. E. Smith; H. W. Levi (1947)

A floristic study of the Festuca meadows in the Gunnison National Forest of Colorado - D. Harper (1946)

Some notes on the plant succession in several glacial kettle holes found due south of the Rocky Mountain Biological Laboratory at Gothic, Colorado - O. W. Crichton (1946)

Hydric succession of three levels on Quigley Creek - C. Dons (1946)

Stages and epochs of mineralization in the San Juan Mountains, Colorado, as shown at the Dunmore Mine, Ouray County, Colorado - Vincent C. Kelley; Caswell Silver (Economic Geology, 1946)
The Dunmore lode is localized along a persistent fissure zone over two miles long and averaging nearly 100 feet in width along the length of the Dunmore claim. The fault in which the lode is located offset the pre-Cambrian quartzite and slate walls about 4,500 feet prior to deposition of the overlying thick San Juan tuff. Late Tertiary faulting extended the fissure into the San Juan tuff, dropping the south side about 80 feet. Although most of the lode crops out in the pre-Cambrian rocks, it extends upward across the profound unconformity into the tuff. The lode is complex, containing sharply marked fissure veins, sheared slate dragged into the fault zone, a sheared dike, breccia chimneys, and pebble dikes. An assemblage consisting of quartz, sericite, kaolin, and pyrite appears to be of early Tertiary age. The more productive part of the lode, however, is late Tertiary and consists of a hematite chimney inclosing a copper shoot, a tungsten chimney, and compound base-metal fissure veins. These chimneys and veins are mostly localized along early Tertiary structures, but their mineral sequences correlate them with the second stage of late Tertiary deposition recognized by Burbank in the adjoining Red Mountain and other districts. The Dunmore lode, however, is believed to have been deposited at greater depth and higher temperature and nearer to a source of supply than the lodes of these districts. In structure as well as mineral assemblages the Dunmore lode shows a connection between the chimneys and veins of the region.

The Probable Origin of the Soft-Shelled Turtle in the Colorado River Basin - R. B. Miller (Copeia, 1946)

Subsurface Geologic Cross Section from Ness County, Kansas, to Lincoln County, Colorado - John C. Maher (Bulletin (Kansas Geological Survey), 1946)

STRUCTURE OF THE RED CREEK AREA, FREMONT COUNTY, COLORADO - ALBERT R. GLOCKZIN; CHALMER J. ROY (Geological Society of America Bulletin, 1945)
Research Article| August 01, 1945 STRUCTURE OF THE RED CREEK AREA, FREMONT COUNTY, COLORADO ALBERT R GLOCKZIN; ALBERT R GLOCKZIN 3219 KEATS STREET, SAN DIEGO, CALIF.; SCHOOL OF GEOLOGY, LOUISIANA STATE UNIVERSITY, BATON ROUGE, LA. Search for other works by this author on: GSW Google Scholar CHALMER J ROY CHALMER J ROY 3219 KEATS STREET, SAN DIEGO, CALIF.; SCHOOL OF GEOLOGY, LOUISIANA STATE UNIVERSITY, BATON ROUGE, LA. Search for other works by this author on: GSW Google Scholar GSA Bulletin (1945) 56 (8): 819–828. https://doi.org/10.1130/0016-7606(1945)56[819:SOTRCA]2.0.CO;2 Article history received: 06 Feb 1945 first online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation ALBERT R GLOCKZIN, CHALMER J ROY; STRUCTURE OF THE RED CREEK AREA, FREMONT COUNTY, COLORADO. GSA Bulletin 1945;; 56 (8): 819–828. doi: https://doi.org/10.1130/0016-7606(1945)56[819:SOTRCA]2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract Detailed large-scale mapping in the Red Creek area 20 miles south-southwest of Colorado Springs shows two significant geologic features, an angular unconformity at the base of the Pennsylvanian Fountain formation, and a high-angle thrust fault.The basal beds of the Fountain formation rest across truncated edges of the older Madison, Harding, and Manitou formations. Although the unconformity is exposed in a limited area, it is significant as the first recorded instance of an angular unconformity between the Fountain and earlier Paleozoic formations.The thrust fault strikes parallel to the mountain front and dips steeply southeast away from the mountains. Overthrusting has been toward the Front Range. To emphasize the thrust direction which is opposite to that on many major thrusts elsewhere along the eastern margin of the Front Range, the Red Creek fault is designated a back thrust. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.

The Hogan Builders of Colorado. H. Betty and Harold A. Huscher. (Southwestern Lore, Volume 9, Number 11, September, 1943. Gunnison, Colorado.) - R. M. Tatum (American Antiquity, 1945)
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Review: So Sorry, No Peace, by Royal Arch Gunnison - Charles Roger Hicks (Pacific Historical Review, 1945)
Book Review| June 01 1945 Review: So Sorry, No Peace, by Royal Arch Gunnison So Sorry, No PeaceRoyal Arch Gunnison Charles Roger Hicks Charles Roger Hicks Search for other works by this author on: This Site PubMed Google Scholar Pacific Historical Review (1945) 14 (2): 247. https://doi.org/10.2307/3635007 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn Email Tools Icon Tools Get Permissions Cite Icon Cite Search Site Citation Charles Roger Hicks; Review: So Sorry, No Peace, by Royal Arch Gunnison. Pacific Historical Review 1 June 1945; 14 (2): 247. doi: https://doi.org/10.2307/3635007 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentPacific Historical Review Search This content is only available via PDF. Copyright 1945 The Pacific Coast Branch, American Historical Association Article PDF first page preview Close Modal You do not currently have access to this content.

Observations on the Ecology of the Gunnison Prairie Dog in Colorado - William Longhurst (Journal of Mammalogy, 1944)
Observations on the Ecology of the Gunnison Prairie Dog in Colorado Get access William Longhurst William Longhurst Department of Zoology, Cornell University, Ithaca, New York Search for other works by this author on: Oxford Academic Google Scholar Journal of Mammalogy, Volume 25, Issue 1, 15 February 1944, Pages 24–36, https://doi.org/10.2307/1374714 Published: 15 February 1944

Summer birds of the Gothic area, Gunnison County, Colorado - D. A. Knox (Auk, 1944)

Stratigraphy of the Colorado group, Upper Cretaceous, in northern New Mexico - Charles H. Rankin (1944)
In previous reports on the Cretaceous rocks of NM, writers have followed the nomenclature established by Cross, and have described all the rocks between the Dakota Sandstone and the Mesaverde coal measures as Mancos Shale. Lee and Darton, in describing the rocks of central and northeastern NM, recognize that some subdivisions of the Colorado group can be identified; but in their measured sections these authors don't differentiate formations. Since 1925 the writer has measured a number of sections of Cretaceous rocks in northern NM while studying the economic geology and oil resources of the region. A study of these sections, which are presented herewith, supplemented by information obtained from the examination of well cuttings, reveals that all divisions of the Colorado Group as described in southern Colorado, except the Fort Hays Limestone and the Apishapa Shale, can be recognized in northern NM. The purpose of this paper is to identify and describe these divisions. The writer has integrated his studies with those of Lee, and also with the excellent descriptions of the rocks of the Colorado Group given by Dane, Pierce, and Reeside. The recognition and study of the divisions of the Mancos Shale throws some interesting light on a phase of the geologic history of northern NM that has previously received only little attention. The persistence of the Greenhorn Limestone over most of northern NM aids materially in solving the problem of the Dakota Sandstone and contemporaneous strata in this and other areas.

Steam Navigation on the Colorado River - Francis Hale Leavitt (California Historical Society Quarterly, 1943)

Records and descriptions of North American craneflies (Diptera). III. Tipuloidea of the upper Gunnison Valley, Colorado - C. P. Alexander (American Midland Naturalist, 1943)
In the present report are discussed the partial results of extensive collections of Tipuloidea that were taken in the vicinity of Gothic, Gunnison Co., Colorado, in 1934, chiefly by Mrs. Alexander and the writer. It is hoped that we will be able to make a detailed survey of the crane-flies of the entire Rocky Mountain system and the western United States and Canada, a study that will require a vast amount of work during the next several years. In 1941, in Wyoming and Colorado, very extensive series of these flies were taken that will be discussed in future parts under this general title.

Classification and Description of Indian Stone Artifacts. E. B. Renaud. (Gunnison: Colorado Archaeological Society, March, 1941. $.50. - H. Holmes Ellis (American Antiquity, 1942)
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The Gothic Quest: A History of the Gothic Novela Gothic Bibliography - Ernest Bernbaum (Modern Language Quarterly, 1942)
Other| September 01 1942 The Gothic Quest: A History of the Gothic Novela Gothic Bibliography Montague Summers. London: The Fortune Press; New York: Columbia University Press, 1941. Pp. xx + 621. $10.00. Ernest Bernbaum Ernest Bernbaum Search for other works by this author on: This Site Google Modern Language Quarterly (1942) 3 (3): 486–488. https://doi.org/10.1215/00267929-3-3-486 Cite Icon Cite Share Icon Share Twitter Permissions Search Site Citation Ernest Bernbaum; The Gothic Quest: A History of the Gothic Novela Gothic Bibliography. Modern Language Quarterly 1 September 1942; 3 (3): 486–488. doi: https://doi.org/10.1215/00267929-3-3-486 Download citation file: Zotero Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search Books & JournalsAll JournalsModern Language Quarterly Search Advanced Search The text of this article is only available as a PDF. Copyright © 1942 by Duke University Press1942 Article PDF first page preview Close Modal Issue Section: Reviews You do not currently have access to this content.

Harry Gunnison Brown: Basic Principles of Economics and Their Significance for Public Policy, Columbia, Mo.: Lucas Brothers, 1942. Pp. xvii, 542. $3.00. - F. A. Hermens (The Review of Politics, 1942)
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Gravity meter survey of the Wellington field, Larimer County, Colorado - John Human Wilson (Geophysics, 1941)
Abstract The results of a gravity meter survey across the Wellington Field, Larimer County, Colorado, both before and after elimination of the regional effect is presented in relation to the subsurface structure of the field. The method of eliminating the regional effect is shown.This information is presented as a 'case book' type, illustrating an anomaly related to local structure that is almost obscured by strong regional gradients.

The origin of the tungsten ores of Boulder County, Colorado - Thomas Seward Lovering (Economic Geology, 1941)
A narrow zone of sericitic alteration encases the Boulder County ferberite veins, but gives way abruptly to a wide outer envelope of argillized rock. The mineralogy indicates sustained attack by early acid solutions that finally changed to neutral and alkaline solutions. Sericitic alteration is conspicuous next to the gold telluride veins and the argillic envelope is rare. The mineralogy of the tungsten and telluride vein filling indicates a progressive change from acid to alkaline solutions and harmonizes with the evidence given by the wall rock alteration. Experiments and the paragenesis suggest that ferberite was precipitated in slightly acid solutions. Galena, tetrahedrite and the gold tellurides are later and presumably precipitated in alkaline solutions. Relatively late pre-ore dikes of biotite latite and latitic explosion breccia are associated with the tungsten and gold-teluride veins. Their composition and field relations suggest that a biotite latite magma heavily charged with volatiles was the source of the mineralizing solutions. It is believed that acid emanations from this magma rose through hot porous explosion breccia with little change in character,, but soon dropped their load above the upward termination of the breccia in the overlying fissures where they reacted with the wall rock and became neutralized and finally alkaline through the acquisition of bases from the quartz monzonite that makes up the country rock of the deposit.

A subalpine climax grassland in west-central Colorado - H. G. Barclay (Bulletin of the Ecological Society of America, 1941)

Plant communities of the Gothic area and their successional relations - H. G. Barclay (Bulletin of the Ecological Society of America, 1941)

The effect of sub-surface strata on ground cover - F. W. Coe (1940)

Representative insect life at Gothic - F. Adams (1940)

Hay is one of the main crops of the Uncompahgre River Valley, Ouray County, Colorado. In this section ranching is the principal farm type and hay is grown for winter feed - Russell Lee (Library of Congress eBooks, 1940)

Plant succession on a permanet rock slide, compared to that of a more recent one - W. Randel (1940)

Ore deposits at Camp Albion, Boulder County, Colorado - Ernest Eugene Wahlstrom (Economic Geology, 1940)
At Camp Albion, Boulder County, Colorado, an unusual assemblage of ore and gangue minerals is found in a sheared and brecciated zone cutting the contact between pre-Cambrian gneiss and a composite Tertiary monzonite stock.Petrographic and chemical-mineralogic studies suggest that the ore was deposited from alkaline residual solutions resulting from prolonged and complex processes of differentiation and injection in a monzonitic magma.A genetic classification of the deposit is difficult because the ore and gangue minerals do not appear to be consistent with the structural setting. However, it is concluded that the deposit may be classified as shallow mesothermal or, possibly, as deep xenothermal as Buddington has defined the word.

Audubon-Albion stock, Boulder County, Colorado - Ernest Eugene Wahlstrom (Geological Society of America Bulletin, 1940)
Research Article| December 01, 1940 Audubon-Albion stock, Boulder County, Colorado ERNEST E. WAHLSTROM ERNEST E. WAHLSTROM Search for other works by this author on: GSW Google Scholar GSA Bulletin (1940) 51 (12_1): 1789–1820. https://doi.org/10.1130/GSAB-51-1789 Article history received: 23 Feb 1940 first online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation ERNEST E. WAHLSTROM; Audubon-Albion stock, Boulder County, Colorado. GSA Bulletin 1940;; 51 (12_1): 1789–1820. doi: https://doi.org/10.1130/GSAB-51-1789 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search nav search search input Search input auto suggest search filter All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract The Audubon-Albion stock in Boulder County, Colorado, is a composite intrusive consisting largely of monzonite and injected into and crosscutting pre-Cambrian granite, gneiss, and schist. The sequence is syenogabbro (oldest), monzonite, quartz-bearing monzonite, syenite, and granite. The monzonite probably formed from a syenogabbroic magma by crystal fractionation, but the younger differentiates, including quartz-bearing monzonite, syenite, and granite, resulted from more complex processes involving not only crystal fractionation but also assimilation or syntexis and transfer of materials by mobile, fluid-rich, alkalic solutions.Age relations, the distribution of the various rock types, and the internal structures suggest that the stock was in part emplaced by repeated subsidence of a large conical block and in part by injection of magma into zones of weakness along internal or external contacts. There is little evidence to indicate that the walls of the stock were forced apart by the advancing magma.Chemical analyses of the syenogabbro show an unusually high content of potash and are nearly identical with analyses of the basalt flows interbedded with the sediments of the Denver formation near Golden, Colorado. Correlation establishes the age of the oldest rock in the Audubon-Albion stock as early Eocene or, possibly, Paleocene. The exact age of the younger differentiates is uncertain. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not currently have access to this article.

Geometric Designs on Mimbres Bowls: (The Gunnison Collection, IX) - C. T. Hurst (American Antiquity, 1940)
In a series of eight former articles, published elsewhere, the writer has described the designs on many of the prehistoric pottery vessels in the collection of the Museum of Archaeology of The Western State College of Colorado Of these eight articles, the last three1 have dealt with the designs on Mimbres vessels. Of the thirty-four vessels of this culture illustrated in these three papers, all but eight show naturalistic art in their decoration. The present, and subsequent papers will deal with geometric forms exclusively.The Mimbres culture developed in southwestern New Mexico in the valley of the Mimbres River and adjacent regions. It is one of the smallest of the more or less definitely delimited southwestern culture areas. From the standpoint of variety of design, the black-on-white type of pottery reached its greatest degree of specialization in this region in prehistoric times.

Peltigera on Longs Peak, Colorado, and in Iowa County, Iowa - Walter Kiener (The Bryologist, 1939)
on uplands. Torreya 14: 167-194. 1914; IV. Bull. Torrey Bot. Club 42: 169-217. 1915; V. Plant societies along rivers and streams. Bull. Torrey Bot. Club 43: 235-264. 1916; VI. The plant associations of eroding areas along the seacoast. Bull. Torrey Bot. Club 47: 80-117. 1920; VII. The plant associations of depositing areas along the seacoast. Bull. Torrey Bot. Club 47: 513-548. 1920. 1914. The International Phytogeographic Excursion in America. Torreya 14: 55-64. 1917. The interpretation and application of certain terms and concepts in the ecological classification of plant communities. Plant World 20: 305-316, 341-353. 1918. The vegetation of northern Cape Breton Island, Nova Scotia. Trans. Conn. Acad. Arts & Sci. 22: 249-467. 1919. Raised bogs in eastern Maine. Geog. Rev. 7: 159-167. 1923. A working basis for the ecological classification of plant communities. Ecology 4: 11-23, 154-179. 1925. Lichens of the Douglas Lake region, Michigan. THE BRYOLOGIST 28: 52-59. 1929. Plant associations and their classification. Proc. Internat. Congr. Plant Sci. 1: 629-641.

The pumping system of the Colorado river aqueduct - J. M. Gaylord (Electrical Engineering, 1939)
This paper describes the power features of the aqueduct being built to supplement the water supply of Southern California. Three hundred thousand kilowatts of power ultimately will be transmitted from Boulder Dam to operate 45 synchronous motors driving centrifugal pumps. High efficiency, long life, and simplicity of design are given precedence over close voltage regulation and the elimination of momentary interruptions.

“River Fogs” of Middle Park, Colorado* - Ronald L. Ives (Bulletin of the American Meteorological Society, 1939)
*Work supported by a grant from the Penrose Fund of the American Philosophical Society.

The Mormons and the Colorado River - Milton R. Hunter (The American Historical Review, 1939)
The Mormons and the Colorado River Get access Milton R. Hunter Milton R. Hunter Latter-day Saint Institute, Utah State Agricultural College Search for other works by this author on: Oxford Academic Google Scholar The American Historical Review, Volume 44, Issue 3, April 1939, Pages 549–555, https://doi.org/10.1086/ahr/44.3.549 Published: 01 April 1939

Coal metamorphism in the Anthracite-Crested Butte quadrangles, Colorado - Edward Charles Dapples (Economic Geology, 1939)
A district in central Colorado is described in which coals of various ranks occur in a restricted area. Some of these coals have been altered by the intrusion of laccoliths whereas others have been affected only by minor folding. The individual effects of heat and pressure in the development of anthracite are discussed, and a theory of anthracitization is propounded utilizing shear strains and heat developed through friction.

Close to Nature: Biological Field Stations - H. Jack (American Biology Teacher, 1939)

Colorado ferns - E. T. Wherry (American Fern Journal, 1938)

Glacial geology of the Monarch Valley, Grand County, Colorado - Ronald L. Ives (Geological Society of America Bulletin, 1938)
The Monarch Valley, in Grand County, Colorado, on the western slope of the Front Range, was studied to determine evidence of glacial advances other than the two generally recognized on the eastern slope of the range. Greater extent of the Pleistocene ice on the western than on the eastern slope necessitated a careful review of criteria used in former studies. Five terminal moraines, of four ages, were found. Methods of correlating these moraines with polished rock surfaces and rock terraces were developed, and some trans-range correlations were found possible. The four major ice advances, called “stages” in this paper, were named, in stratigraphic order, Monarch, Arapaho, River, and Stillwater. The ages tentatively assigned them are, respectively: Late Wisconsin, Middle Wisconsin, Early Wisconsin (Iowan), and not younger than Illinoian. Some investigation of preglacial stratigraphy and history was found desirable in connection with this study. Climatic inferences were drawn from recessional history; the present condition of existing glaciers in the area was described; and the work necessary to secure a complete picture of Pleistocene glaciation in the Rocky Mountain region was mentioned.

Unusual Waterbirds in El Paso County, Colorado - W. S. Long (The Auk, 1938)

Soft-Shelled Turtles in the Colorado River Basin - Jean M. Linsdale; J. Linsley Gressitt (Copeia, 1937)

Agglutination Reactions of the Heat Stable Antigens of Clostridium Tetani - J B Gunnison (The Journal of Immunology, 1937)
Abstract Nine serologic types of Clostridium tetani have been differentiated by means of the agglutination reaction as a result of the studies of Tulloch (1), Bauer (2), Fildes (3), Bauer and Meyer (4), Coleman and Meyer (5) and Coleman and Gunnison (6). As Felix and Robertson (7) have pointed out, this division into types was based on the reaction of the “flagellar” or “H” antigens only, as the methods employed were unsuitable for “somatic” or “O” agglutination. The method of qualitative receptor analysis of H and O antigens as proposed by Weil and Felix (8, 9) was applied to the study of Cl. tetani by Felix and Robertson (7). They stated that the thermolabile H or flagellar antigens which gave flocculent agglutination were type specific, but that the thermostable O or somatic antigens which gave finely granular agglutination were closely related and showed marked overlapping among the types.

Boulder County [Colorado] tungsten ores - Frederick Brewster Loomis (Economic Geology, 1937)
Ferberite, the chief tungsten mineral, occurs in (a), coarse textured, drusy veins; (b), stringers with chalcedony and cryptocrystalline quartz; and (c), breccia fragments. In (a), ferberite coats the walls, and scheelite is in the druses; in (b), ferberite likewise encrusts the walls and quartz crusts rest upon it. The medial parts are cryptocrystalline quartz and chalcedony that contain ferberite largely as mechanical inclusions. Adjacent tabular inclusions have their long axes parallel as in flow structures. These features suggest a viscous rock-silica mixture at least approximating a gel. Bursts of the mixture through the quartz-ferberite zone into the wallrock indicate moderate to high pressure in it. Presence of chalcedony and wurtzite suggests acid conditions at one mineralization stage.The breccia-like deposits have ferberite only as inclusions derived from the preceding types. Opal and minor cryptocrystalline quartz are the only depositions. The fragments include quartz, potash feldspars, and muscovite, but are chiefly sericite and minerals of the montmorillonite-beidellite-nontronite series. These associated minerals and the general structure of the mass suggest that the deposit formed in the upper part of a hot spring channel.

Pumping Stations on the Colorado River Aqueduct - M. Spillmann (Journal AWWA, 1936)

The age relations of the Ward ores, Boulder County, Colorado - Ernest Eugene Wahlstrom (Economic Geology, 1936)

Ectoparasites of chipmunks and ground squirrels - J. A. Davis (1936)

Some Snails of the Gunnison National Forest - J. T. Self (Proceedings of the Oklahoma Academy of Science, 1936)

Diseases of plants in the United States in 1934 / - H. A. Edson; Paul R. Miller; Jessie I. Wood (1935)
BUNT (Ti lleti a levis and T. t rltici ) occasioned losses esti- mated as follows: Maryland, West Virginia, North Carolina, Montana, each 3 per cent; Michigan, 2.5", Oregon, 2; Washington, 1 to 2; Ohio and North Dakota, each 1.5> Pennsylvania, 1.3; Texas, Indiana, and Kansas, each 1; South Carolina and Minnesota, O.^J Delaware, Wiscon- sin, and Colorado, each a trace.

A brief review of the geology of the San Juan region of southwestern Colorado - Whitman Cross; Esper S. Larsen (1935)
Pre-Potosi volcanic rocks

The Economic Basis of Tax Reform. By Harry Gunnison Brown. - Denzel C. Cline (The Bulletin of the National Tax Association, 1934)

A Recent Rockslide near Durango, in La Plata County, Colorado - John W. Vanderwilt (The Journal of Geology, 1934)
Contrary to the somewhat sensational accounts in the public press, the rockslide on Carbon Mountain does not exhibit any unusual features. The slide involves the lower 100-125 feet of the Fruitland formation, of Upper Cretaceous age, which consists largely of shale and lies immediately above the Pictured Cliffs sandstone. The mass involved is about 1,800 feet long, 600 feet wide, and 100 feet deep and has moved about 700 feet obliquely down the back slope of a hogback of Pictured Cliffs sandstone, which dips about 21° SE. The slope along the direction of the major movement has a gradient of only 40 per cent. The mass moved slowly, the maximum recorded rate being about 30-45 feet a day.

Beryl-molybdenite deposit, Chaffee County, Colorado - Kenneth Knight Landes (Economic Geology, 1934)

County Consolidation in Colorado - Scoville R. Heckart (Journal of Farm Economics, 1934)

Regulation of the Colorado River - C. L. Elder (Journal AWWA, 1933)

Species of Sclerotinia from Grand Mesa National Forest, Colorado - Ross W. Davidson; Edith K. Cash (Mycologia, 1933)
This paper consists of some of the results of a collecting trip made by the senior author to the Grand Mesa National Forest, Colorado, during the period of June 12 to July 20, 1930. Al? though the fungi here discussed represent only a small percentage of the total number of collections, it seems that the species of Sclerotinia were sufficient in number and interest to justify a separate account. The Grand Mesa National Forest is on the western slope of the Continental Divide in the west-central part of Colorado, and Grand Mesa Mountain, where most of the species of Sclerotinia were obtained, has sufricient moisture from melting snow and summer rains to make possible a rich fungus flora. Most of the fungi were found near the top of the mountain, at an elevation of about 10,000 feet; Sclerotinia gregaria, however, occurred approximately 2,000 feet lower, several miles down the mountain from Mesa Lakes.

Color variations in castilleia in the higher altitudes - J. C. Johnson (Proceedings of the Pennsylvania Academy of Science, 1932)

The behavior of the avain malarias in the common fowl, an abnormal host - R. D. Manwell (American Journal of Tropical Medicine, 1931)

Economic problems in the production and marketing of cantaloupes in the Arkansas Valley of Colorado - William F. Droge (Digital Collections of Colorado (Colorado State University), 1930)

Retail list of seeds, 1929 / - Henry G. Gilbert Nursery and Seed Trade Catalog Collection. (1929)
Chalks Early JewelUsed by the canners in the Arkansas Valley more than any other variety.While not as good a tomato for canning as some other varie¬ ties, the earliness and yielding qualities make it their favorite.Our seed of this variety is exceptionally good.Oz., 30c.Sparks Earliana Very early.The fruit is unusually solid, but few seeds, and at¬ tractive red color.Very productive.Oz., 30c.June Pink One of the early choice tomatoes; enormous bearer; fruit is of medium size, smooth and attractive shape; in color, a pleasing pink.Early Detroit An early, medium-sized, smooth, purple fruited sort.Gobular in shape and good flavor.Oz., 30c.Livingston Beauty For the main crop tomato, this is still the best one to grow; the plants make a strong growth and bear profusely.They are usually pro¬ duced in clusters of four, is large, of perfect shape, good color, and will not bruise in handling like some of the new varieties will.Oz. 30c.Experience has proven that one variety of tomato is better adapted to soil and other conditions in your locality, so when you have been successful with a certain variety, make that one your crop.

Child labor in agriculture and farm life in the Arkansas Valley of Colorado : based upon studies made during summer, fall, and winter, 1924 in cooperation with the National Child Labor Committee - Bertram H. Mautner; William Abbott; Howard W. Bell; Anna Nütz Bispham (Harvard Library (Harvard University), 1929)

Converting the Colorado River into a National Asset - Hiram Johnson (Current History, 1929)
Essay| February 01 1929 Converting the Colorado River into a National Asset Hiram Johnson Hiram Johnson United States Senator From California Search for other works by this author on: This Site PubMed Google Scholar Current History (1929) 29 (5): 786–792. https://doi.org/10.1525/curh.1929.29.5.786 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Cite Icon Cite Search Site Citation Hiram Johnson; Converting the Colorado River into a National Asset. Current History 1 February 1929; 29 (5): 786–792. doi: https://doi.org/10.1525/curh.1929.29.5.786 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentCurrent History Search This content is only available via PDF. © 1929 by The Regents of the University of California1928 Article PDF first page preview Close Modal You do not currently have access to this content.

THE COLORADO RIVER SITUATION - JAMES H. Gordon (Monthly Weather Review, 1928)

National forests of Colorado / - United States. (U.S. Dept. of Agriculture eBooks, 1928)
by working out and applying advanced methods of forestry.Thus the forester's first job 1s to keep the woods from burning.Time is a factor of the highest importance in getting to forest fires and there must be ample provision

Additional Notes on the Birds of the Elk Mountain Region, Colorado - Edward R. Warren (The Auk, 1928)

Zoology of Colorado - T. D. A. Cockerell (1927)
truly said that we have witnessed the process of evolution from the beginning, dull though our perception of it may have been.

1927 autumn catalogue of Rockmont Nursery : new or noteworthy plants - D. M. Andrews; Rockmont Nursery.; Henry G. Gilbert Nursery and Seed Trade Catalog Collection. (1927)

The geology, petrography, and mineralogy of the vicinity of Italian Mountain, Gunnison County, Colorado - Whitman Cross; Earl V. Shannon (Proceedings of the United States National Museum, 1927)

The Proposed Aqueduct from the Colorado River - William Mulholland (Journal AWWA, 1927)

The Utilization of the Colorado River - R. Brown (Geographical Review, 1927)
N the early development of a country rivers are useful mainly as avenues of travel. They are highways to the interior which lure the adventurer and the pioneer. Later, when the land becomes settled, they may or may not retain this primal use. Now protection is demanded from the ravages of the river, and the property and the life of the riparian settler must be safeguarded. Later, when great cities grow in the basin, heavy demands for water for domestic purposes arise; and power for lighting, transportation, and manufacturing is called for. Of all the uses of the river, which are paramount and which are subservient? If two or more can be developed, which should have the preference? Under what conditions do the uses of a river conflict?

GEOLOGICAL RECONNAISSANCE OF PARTS OF GRAND, JACKSON AND LARIMER COUNTIES, COLORADO - L. E. Spock (Annals of the New York Academy of Sciences, 1927)

Gunnison Tillite of Eocene Age - Wallace W. Atwood (The Journal of Geology, 1926)
The Gunnison tillite was first described in a paper presented by the present authors at the 1924 December meeting of the Geological Society of America. Further geologic and physiographic field studies have established a somewhat widespread distribution of this formation and appear to justify a close correlation with the Ridgway tillite of mid-Eocene age.

Harnessing the Colorado River - Norman C McLoud (Current History, 1926)
Essay| August 01 1926 Harnessing the Colorado River Norman C McLoud Norman C McLoud A Writer on Scientific and Technical Subjects Search for other works by this author on: This Site PubMed Google Scholar Current History (1925) 24 (5): 715–719. https://doi.org/10.1525/curh.1926.24.5.715 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Cite Icon Cite Search Site Citation Norman C McLoud; Harnessing the Colorado River. Current History 1 August 1925; 24 (5): 715–719. doi: https://doi.org/10.1525/curh.1926.24.5.715 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentCurrent History Search This content is only available via PDF. © 1926 by The Regents of the University of California1926 Article PDF first page preview Close Modal You do not currently have access to this content.

The Economics of Taxation. Harry Gunnison Brown - Henry C. Simons (Journal of Political Economy, 1926)

Notes on the Laramie Formation in Central Weld County, Colorado - W. C. Toepelman (The Journal of Geology, 1926)

Discovery of fossil mammals in the Brown's Park formation of Moffatt County, Colorado - Olof August Peterson (Annals of the Carnegie Museum, 1924)
rests directly, but unconformably, upon the Bridger or the Uinta, and all earlier formations in the region northeast and east of the Uinta and Blue Mountains of Utah and Colorado. The formation consists of finer and coarser

Exploration and Control of the Colorado River - Lewis R. Freeman (Geographical Review, 1924)

The Glacial Geology of Grand Mesa, Colorado - Junius Henderson (The Journal of Geology, 1923)

One Aspect of the Colorado River Interstate Agreement - Samuel C. Wiel (California Law Review, 1923)
T WAS contended by Colorado, in Wyoming v. Colorado,' and again, so it is reported, in the Colorado River Jnterstate Treat, negotiations, that because the continental divide-ihere so many of the rivers of the surrounding states have their source-is in Colorado, therefore all the water of those rivers is owned by Colorado, to consume as she needs.We venture to suggest that the importance of the agreement to California in this respect does not lie chiefly in its being another ruling that Colorado's contention is erroneous.It is more important if Colorado, by joining in the agreement, admits the error; a point which this paper endeavors to illustrate by two California instances within the writer's notice.1.That Colorado's contention was error seems, by the very recent decision of the Supreme Court of the United States in Wyoming v. Colorado, sufficiently demonstrated in principle; yet our first illustration is devoted to the principle because of an unusual conjunction of facts giving it illustrative force.These rulings, which we will call the Bear River cases, 2 passed upon the relative superiority, in the waters of Bear River, of the claims of the Wheatland hop fields, the largest in California, situated at the lower end of the river, and the prescriptive claims of the Pacific Gas and Electric Company in the mountains.Plaintiffs' lands were a Mexican Grant of 1845.About twelve miles above plaintiffs' the main river and a branch, called Wolf Creek, came to a confluence out of the mountains.

The Rural School Health Question as Solved by El Paso County, Colorado - Irene Morton Richmond (The American Journal of Nursing, 1923)

Treatment of tungsten ores of boulder county, Colorado - J.P. Bonardi; J. H. Williams (Journal of the Franklin Institute, 1922)

Early Records of Gilpin County, Colorado - A. L. C.; Thomas M. Marshall (The Yale Law Journal, 1921)

Farm practice in growing field crops in three sugar-beet districts of Colorado / - S. B. Nuckols; Thomas H. Summers (U.S. Dept. of Agriculture eBooks, 1921)
Acknowledgment is due to Miss Catherine Hawley, of the Office of Farm Management and Farm Economics, for careful

FRUIT-FROST WORK IN THE GRAND VALLEY OF COLORADO - ANDREW M. HAMRICK (Monthly Weather Review, 1921)

Phytogeography of the eastern mountain front in Colorado ... - Arthur G. Vestal (1919)

Ore deposition and enrichment at the Evergreen Mine, Gilpin County, Colorado - D. H. McLaughlin (Economic Geology, 1919)

THE COLORADO RIVER - FREDERICK H. BRANDENBURG (Monthly Weather Review, 1919)
SYNOPSIS This papers concerns the method of river-stage forecasting for the Colorado River and its principal tributaries, the Green, Grand, and San Juan Rivers. A brief description of the topographic features and courses of these streams is given. Attention is given to temperature conditions, as these to a large extend control the melting to the snows, which in turn make up much of the water supply. Two rating tables supplement text, covering the Green and the Grand Rivers respectively.—H. L.

Colorado - United States Railroad Administration. (1919)

The Ouray mountains of the Uncompahgre national forest ... - United States. (Govt. Print. Off. eBooks, 1919)
PORTION of Colorado better deserves the title of "The Switzerland of America" than the mountain areas in the Uncompahgre National Forest. Here is a region of high and rugged peaks, deep, rock-walled canyons, great plateaus, and green valleys. Excellent fishing, delightful camping sites, and an endless variety of mountain scenery await the visitor. No bothersome restric tions are imposed upon those who use the Uncompahgre National Forest for recreation. The camper may pitch his tent in any spot on Government land that strikes his fancy, and the sportsman may fish and hunt, subject only to the Colorado game laws. Practically all that is required of the visitor is to be careful with fire and to keep his camp site clean. The headquarters of the Uncompahgre Forest is at Delta, where detailed information concerning recreational features and routes of travel can be obtained. Similar information will be given gladly at the Forest Service district office. Federal building, Denver, and by local Forest officers on the ground.

Vacation trips in the Cochetopa National Forest ... - United States. (Govt. Print. Off. eBooks, 1919)
WHO would not be attracted by the thought of a vacation spent on the Great Divide, that mighty crest of the conti nent, where towering peaks, jeweled lakes, tree-clad slopes, and green parks await the lover of nature and the out-of-doors? In the heart of this great mountain playground is the Cochetopa National Forest, whose more than 900,000 acres stretch for 60 miles along the Divide in Chaffee, Hinsdale, and Saguache Counties and contain some of the most rugged and picturesque scenery to be found in Colorado.

Farm practice in growing sugar beets for three districts in Colorado 1914-15 / - L. A. Moorhouse (U.S. Dept. of Agriculture eBooks, 1918)
by tenure......--.

Rodents of Colorado in their economic relation / - W. L. Burnett (1918)
As you are aware, I have been engaged for some time past in work, under your direction, on the control of rodents

Principles of Commerce. Harry Gunnison Brown - Sumner H. Slichter (Journal of Political Economy, 1917)

Transportation Rates and Their Regulation. Harry Gunnison - J. Maurice Clark (Journal of Political Economy, 1917)

Annual seed catalog. garden, field and grass seeds. Season 1917 - Grand Junction Seed Co.; Henry G. Gilbert Nursery and Seed Trade Catalog Collection. (1917)
SEED TRADE have conditions been so complicated as they are today.The greatest of all wars has been raging for the past two and one-half years, and the end is as far off, apparently, as it was two years ago.The countries that have supplied us with the bulk of our seeds in the past are engaged in a death grapple, and their seed crops the past two seasons have been very short, many varieties almost a complete failure.Den- mark and other countries fearing a seed famine have placed an embargo on very many kinds of seeds.There has also been a shortage in our own country the GRAND JUNCTION SEED COMPANY Grand Junction, Colorado "John Baer Tomato"The Earlist Tomato on Earth T HIS MOST wonderful tomato was first introduced by a large East- ern grower in 1914, and the seed was sold at $50.00 per pound.We listed it season before last for the first, and as we were about the first to introduce it in the West we had some misgivings for fear it might not meet all the wonderful claims the growers made for it.However, we are glad to Say the John Baer has certainly made good, and stands today at the head of the list for early and best all around tomato.The many good words and letters of recommendations we have received from grow- ers, canners, market gardeners and others justify us in placing it at the head of the list.Our mail orders of this one tomato last season were more than all the others combined.G. W. Marchant of Fruita, Colo., put out 1,400 John Baer plants on less than half an acre and raised over fourteen tons (.28,000 pounds) tomatoes, which he sold at the canning factory, receiving the top prices.

Occurrence, geology, and economic value of the pitchblende deposits of Gilpin County, Colorado - Edson Sunderland Bastin (Economic Geology, 1916)

Notes on the Birds of the Elk Mountain Region, Gunnison County, Colorado - Edward R. Warren (The Auk, 1916)
292 Warren, Birds of the Elk Mountain Region, Colo.[sae now be held of specific value, as no intermediate specimens are: forthcoming."It remained for M. Johan Beetz to point out the fact that there is an intermediate form between dresseri and borealis.Instead of this form.beinga new species, as M. Beetz suggests, it seems to me, however, that his important discovery shows that dressert intergrades with borealis, and that like borealis it should be classed as a subspecies of mollissima.If this view is accepted this Eider should be reduced from its specific station and be listed as Somateria mollissima dressert.A study of the breeding Eiders about Hamilton Inlet, the supposed dividing line between the ranges of borealis on the north and dresserii on the south, would be of interest.-C.W. T.

International Trade and Exchange. Harry Gunnison Brown - F. W. Taussig (Journal of Political Economy, 1915)

Some Park County, Colorado, Bird Notes - Edward R. Warren (The Condor, 1915)

Ores of Gilpin County, Colorado - Edson Sunderland Bastin (Economic Geology, 1915)

Cicero, Seven Orations: With Selections from the Letters, De senectute, and Sallust's Bellum Catilinae. Walter B. Gunnison , Walter S. Harley - R. W. Husband (The School Review, 1914)

Results of a paleobotanical study of the coal-bearing rocks of the Raton Mesa region of Colorado and New Mexico - F. H. Knowlton (American Journal of Science, 1913)

Irrigation and River Control in the Colorado River Delta - H. T. Cory (Transactions of the American Society of Civil Engineers, 1913)
384 pages

Notes on Some Mesa County, Colorado, Birds - Edward R. Warren (The Condor, 1913)
The nests, with one exception, have been placed on horizontal limbs of a distance of from five to fifteen feet out from the trunk of the tree, and from seven to thirty feet high. On July 15, 1907, a nest containing young just hatched was found placed about seven feet up, and in, next to the body of a small, gnarly, dead spruce, with the stub of a limb and a few small twigs the only support. In all cases the nests have been composed of the sa e materials, and alike in structure. From a hasty glance they seem light and flimsy; but as a matter of fact, they are quite compact. The small under platform does not exceed much in size the nest proper, or heavy lining, and is built of the small (lead twigs of the mountain maple, willow, or pine, according to location. On top of this is placed coarse weeds and straws, into which is worked a fine, wire-like weed, of the previous year's growth, until finally the lining proper consists of this weed altogether. It is quite remarkable how dense and well conformied this stiff and brittle wire-like weed becomes. Of course at the time the nest material is gathered it is still damp, and flexible; for it is secuired from the few spots here and there that are bared of the snow on the sunny exposures. Invariably the nesting site chosen is in a lone tree on the edge of the timber, on or near the point of a mountain always having a good outlook. The earliest date of the finding of a completed nest is May 25, the latest July I. The laying of eggs is commenced fro two to ten days from the time when the nest is completed. Three seems to be the common comple ent; in one instance, only, was a nest found containing four young. The earliest date of the finding of young in the nest is July 12, then about three days old. The latest date is August 20, with young ready to fly. Upon inquiry at several of the mines which continue work throughout the entire winter, we are told that this Grosbeak is a constant resident. The elevation of these mines varies from 7,000 to 8,500 feet.

The iron ore deposits of the Cebolla District, Gunnison County, Colorado - Joseph Theophilus Singewald (Economic Geology, 1912)

A history of the birds of Colorado - W. L. Sclater (1912)
necessary for the appear- ance of a new American Bird-book.Mine must be that the only complete work on Colorado Birds is that of Cooke, which, though brought up-to-date by successive supplements, is now out of print and very difficult to obtain.Moreover, Cooke gives no descriptions or keys, so that it is not of much use to the tjrro who wishes to identify the birds which he has observed or obtained'The present volume is founded on the very complete collection of Colorado birds formed during the last thirty-five years by Mr.

Soils of the San Luis Valley, Colorado - Macy H. Lapham (Govt. Print. Off. eBooks, 1912)
Valley, Colo.," prepared by

COLORADO RIVER SIPHON TUNNEL - L. N. JESUNOFSKY (Monthly Weather Review, 1911)

The Coccidae of Boulier County, Colorado - T. D. A. Cockerell (Journal of Economic Entomology, 1910)
Journal Article The Coccidae of Boulier County, Colorado Get access T. D. A. Cockerell T. D. A. Cockerell Search for other works by this author on: Oxford Academic PubMed Google Scholar Journal of Economic Entomology, Volume 3, Issue 5, 1 October 1910, Pages 425–430, https://doi.org/10.1093/jee/3.5.425 Published: 01 October 1910

Bird Notes from Salida, Chaffee County, Colorado - John W. Frey; Edward R. Warren (The Auk, 1910)

A preliminary report on the geology of the Monarch mining district, Chaffee County, Colorado / by R.D. Crawford. - R. D. Crawford; Colorado Geological Survey. (1910)
Plate I Topographic map of the Monarch district II Geologic map of the Monarch district III Geologic sections of the Monarch district IV Mining claims of Monarch Hill V Horizontal plan of Madonna mine VI Vertical plan of Madonna mine above third level VII Cross-sections of Madonna ore bodies VIII Horizontal plan of Eclipse mine IX Vertical plan of Eclipse mine X Mining claims of Taylor Gulch XI Horizontal and vertical plans of the Lilly mine

An association of enargite, covellite, and pyrite from Ouray County, Colorado - W. M. Thornton (American Journal of Science, 1910)

Fruit-growing in arid regions; - Wendell Paddock; from old catalog Whipple Orville B. (The Macmillan company eBooks, 1910)
Tuts volume is the outgrowth of over eight years' experience in inter-mountain horticulture. From the nature of our work, much time has been spent in orchards in the various districts, and Mr. Whipple, in the capacity of Field Agent in Horticulture, has been stationed for the _ past three years at Grand Junction, Colorado, the center of one of the most famous fruit sections in the Union. During this time the writers have become acquainted with the many problems that are of interest to the experienced orchardist and most perplexing to the novice, through personal contact with fruit-growers and at horticultural short-courses as well as through correspondence. Arid horticulture is very different in many respects from that of the humid states, and a fruit-grower from the East has much to learn. But the majority of our fruit-growers had no experience in horticulture before coming West, and many of them had little or no knowledge of country life. Such persons have everything to learn, and it is to them that this volume is especially addressed. Horticulture has only begun to be developed in the semi-arid West; consequently new settlers will continue to come to us for many years, and instruction in the elements of the art of horticulture will continue to be in demand.

Ration experiments with swine, 1906-1908 / - W. L. Carlyle; G. E. Morton (1910)
VII. Barley ten parts ; tankage one part . 130 405 46 $4.97 4 VIII. Corn ten parts ; tankage one part.

Notes on the Birds of Southwestern Montrose County, Colorado - Edward R. Warren (The Condor, 1909)

A Correction: An Annotated List of the Birds of Mesa County, Colorado - A. H. Felger (The Condor, 1909)

The Great Gunnison Irrigation Project - Albert Wilhelm (Scientific American, 1909)

An Annotated List of the Birds of Boulder County, Colorado Junius Henderson - Robert B. Rockwell (The Condor, 1909)