...57 of the Biological Survey,Department of Agriculture...
William T. Hornaday 「Our Vanishing Wild Life」
...Henshaw, Chief of the Biological Survey...
William T. Hornaday 「Our Vanishing Wild Life」
...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」
...With its usual enterprise and forethought, the Biological Survey ofthe Department of Agriculture has published a valuable pamphlet of22 pages on "Silver Fox Farming," by Wilfred H...
William T. Hornaday 「Our Vanishing Wild Life」
...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」
...A Biological Investigation of the Athabasca-MackenzieRegion, N...
Frank M. Chapman 「Color Key to North American Birds」
...30, Biological Survey, pp...
Frank M. Chapman 「Color Key to North American Birds」
... After these biological curiosities, it remains for me to discuss the principal subject of this chapter: the botanical origin of the materials of the nest...
J. Henri Fabre 「Bramble-bees and Others」
...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」
...Lichens—their biological andeconomic significance...
Francis Harper 「The Barren Ground Caribou of Keewatin」
...The authors of this paper spent the summer of 1920 inwestern Michigan studying the mammals of the region forthe Michigan Geological and Biological Survey...
L. R. Dice 「Notes on the Mammals of Gogebic and Ontonagon Counties, Michigan, 1920」
...Funds and assistance for the preparation ofintermediated drafts and logistics support for all stages ofpreparation of this guide were provided by Biological Systems,Inc...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...Synopsis of biological data on the chum salmon, Oncorhynchus keta(Walbaum) 1792...
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」
...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」
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