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A Biological Survey of Colorado

Description: From introduction: "Report based chiefly on the field work prosecuted during 1905, 1906, 1907, and 1909. It is primarily a characterization of the several major distribution areas or life zones."
Date: August 17, 1911
Creator: Cary, Merritt
Partner: UNT Libraries Government Documents Department
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Life Zone Investigations in Wyoming

Description: Characterizes five transcontinental life zones in Wyoming; defines their extent and limits; lists mammal, breeding bird, reptile, amphibian, and plant species; and provides notes on distribution and abundance of trees observed during the survey.
Date: October 3, 1917
Creator: Cary, Merritt
Partner: UNT Libraries Government Documents Department
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Life Zones and Crop Zones of New Mexico

Description: Discusses geography, climate, agricultural practices, and crops of each life zone in New Mexico. Provides mammal, breeding bird, reptile, amphibian, and plant species list for each zone. Includes a life zone map.
Date: September 5, 1913
Creator: Bailey, Vernon
Partner: UNT Libraries Government Documents Department
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A Review of the American Moles

Description: Discusses habits; economic status; characteristics and development of young; pelages and molts; and geographic, individual, sexual, and age variation. Describes subfamilies, history, and generic names of the family Talpidae. Describes, lists locations, and provides a key for genera, species and subspecies.
Date: September 30, 1915
Creator: Jackson, Hartley H. T.
Partner: UNT Libraries Government Documents Department
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Review of the Grizzly and Big Brown Bears of North America (Genus Ursus): with Description of a New Genus, Vetularctos

Description: Discusses distribution,sexual and age differences, specimens, and classification of North American grizzly and big brown bears. Describes and lists locations of species and subspecies. Mentions Vetularctos, a new genus related to Ursus.
Date: February 9, 1918
Creator: Merriam, C. Hart
Partner: UNT Libraries Government Documents Department
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Revision of the American Marmots

Description: Discusses history, nomenclature, common names, habits, external characters, and specimens of American marmots. Describes, lists locations, and provides a key to species and subspecies.
Date: April 7, 1915
Creator: Howell, Arthur H.
Partner: UNT Libraries Government Documents Department
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Revision of the Pocket Gophers of the Genus Thomomys

Description: Describes habits, predators, morphology, sexual variation, pelages, and distribution of pocket gophers. Describes genera and group relations. Describes, lists locations and distribution, and provides a key for species and subspecies.
Date: November 15, 1915
Creator: Bailey, Vernon
Partner: UNT Libraries Government Documents Department
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A Systematic Account of the Prairie Dogs

Description: Discusses distribution, habits, economic status, predators, nomenclature, specimens, and pelages of prairie dogs. Describes, lists locations, and provides a key for species and subspecies.
Date: June 20, 1916
Creator: Hollister, N.
Partner: UNT Libraries Government Documents Department
open access

A Systematic Synopsis of the Muskrats

Description: From introduction: "Systematic account of the genus Fiber through study of over 1,000 specimens, chiefly well-prepared skins, accompanied by skulls, together with many odd skulls and skeletons."
Date: April 29, 1911
Creator: Hollister, N.
Partner: UNT Libraries Government Documents Department
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