...Investigations by the Biological Survey show that thirty-eightspecies of birds eat boll weevils... 
William T. Hornaday 「Our Vanishing Wild Life」
...As the warfare growsmore intense, Congress may find it necessary to enlarge the fightingforce of the Biological Survey...
William T. Hornaday 「Our Vanishing Wild Life」
...They were compiled andpublished by Henry Oldys, of the Biological Survey...
William T. Hornaday 「Our Vanishing Wild Life」
...In a letter to the Biological Survey, under date of April 3, 1896, Mr...
A. R. (Arthur Robert) Harding 「Wolf and Coyote Trapping」
...Lantz, of the Biological Survey, would indicate the best results from a still larger dose...
A. R. (Arthur Robert) Harding 「Wolf and Coyote Trapping」
...Vernon Bailey, who made an investigation of the wolf trouble in the interests of the Biological Survey and the department of Forest Service...
Elmer Harry Kreps 「Science of Trapping」
...A Biological Reconnaissance of the Base of the Alaska Peninsula...
Frank M. Chapman 「Color Key to North American Birds」
...Economic Ornithology [= Biological Survey]...
Frank M. Chapman 「Color Key to North American Birds」
...—"'The Making of Species' will do much to arrest thefossilisation of biological science in England...
Douglas Dewar 「A Bird Calendar for Northern India」
...Accordingly, comparisons were made withmaterials in the Biological Surveys collection of the U...
Rollin H. Baker 「Mammals taken Along the Alaska Highway」
...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」
...A biological exploration of Banks and Victoria Islands...
Francis Harper 「The Barren Ground Caribou of Keewatin」
...Report of the Bureau of Commercial Fisheries Biological Laboratory,Beaufort, N...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...Report of the Bureau of Commercial Fisheries Biological Laboratory,St...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...Report of the Bureau of Commercial Fisheries Biological Laboratory,Galveston, Texas, fiscal year 1969...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...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」
...The specimensconcerned are in the Biological Surveys Collection of the U...
E. Raymond Hall 「Comments on the Taxonomy and Geographic Distribution of Some North American Marsupials, Insectivores and Carnivores」
...The purpose of this report is to make clear the biological relationshipsbetween the shrews of the Sorex vagrans-obscurus "speciesgroup...
James S. Findley 「Speciation of the Wandering Shrew」
便利！手書き漢字入力検索
この漢字は何でしょう？？