...
—These magnificent monsters present a perplexing problem, which I am inclined to believe can be satisfactorily solved by the Biological Survey only in short periods, say of three or four years each... 
William T. Hornaday 「Our Vanishing Wild Life」
...It is very necessary that the regulations for conserving thewild life should be fixed by the Secretary of Agriculture, with theadvice of the Biological Survey...
William T. Hornaday 「Our Vanishing Wild Life」
...The Biological Survey of the U...
William T. Hornaday 「Our Vanishing Wild Life」
...A few were seen in the Devil's Kitchen, MammothHot Springs, and one sent to the Biological Surveyfor identification...
Ernest Thompson Seton 「Wild Animals at Home」
...Lantz, of the Biological Survey, would indicate the best results from a still larger dose...
A. R. (Arthur Robert) Harding 「Wolf and Coyote Trapping」
...The State Biological Survey of Kansas provided funds, equipment, and transportation...
Donald W. Janes 「Home Range and Movements of the Eastern Cottontail in Kansas」
...By utilizingthe combination of many morphological and biological factors, thegenus Smilisca can be defined reasonably well as a natural, phyleticassemblage of species...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...Economic Ornithology [= Biological Survey]...
Frank M. Chapman 「Color Key to North American Birds」
...38, Biological Survey...
Frank M. Chapman 「Color Key to North American Birds」
...
For the loan of comparative mammalian material, grateful acknowledgmentis made to officials of the following institutions:California Academy of Sciences; Biological Surveys collection ofthe U...
Rollin H. Baker 「Mammals taken Along the Alaska Highway」
...Accordingly, comparisons were made withmaterials in the Biological Surveys collection of the U...
Rollin H. Baker 「Mammals taken Along the Alaska Highway」
...Visher(1914), in an early biological survey of the area, listed 40 species ofmammals, but his accounts are mainly of historic value...
Kenneth W. Andersen 「Mammals of Northwestern South Dakota」
...Thepersons responsible were doubtless inspired by high humanitarianmotives; but it is doubtful if they could have thoroughly considered orforeseen the serious biological consequences of their efforts...
Francis Harper 「The Barren Ground Caribou of Keewatin」
...A biological exploration of Banks and Victoria Islands...
Francis Harper 「The Barren Ground Caribou of Keewatin」
...Bureau of Commercial Fisheries Tropical Atlantic Biological Laboratoryprogress in research 1965-69, Miami, Florida...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...Schantz, of the UnitedStates Biological Surveys Collection, I have examined topotypes of D...
E. Raymond Hall 「Mammals Obtained by Dr. Curt von Wedel from the Barrier Beach of Tamaulipas, Mexico」
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