Biblioteca Digital

8 resultados para day programs

em Biodiversity Heritage Library, United States

A short history of natural science and of the progress of discovery from the time of the Greeks to the present day.

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Darwinism to-day; a discussion of present-day scientific criticism of the Darwinian selection theories, together with a brief account of the principal other proposed auxiliary and alternative theories of species-forming,

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Life and its maintenance. A symposium on biological problems of the day.

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The day butterflies and duskflyers of New England, how to find and know them. By Edward Knobel.

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Russia then and now, 1892-1917; my mission to Russia during the famine of 1891-1892, with data bearing upon Russia of to-day, by Francis B. Reeves; with thirty-four illustrations.

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Mammals of the Collins-Day South American expedition, by Wilfred H. Osgood.

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v.10:no.14(1916)

Science policy : USA/USSR / [report prepared for National Science Foundation, Directorate for Scientific, Technological and International Affairs, Division of International Programs].

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Cubans of to-day.

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