Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Том 70American Philosophical Society, 1931 |
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Сторінка 141
... United States are available in sufficient number and detail to provide adequate information for those who are concerned with surface transportation undertakings . Thus , the mean annual and mean monthly depths of snowfall throughout the ...
... United States are available in sufficient number and detail to provide adequate information for those who are concerned with surface transportation undertakings . Thus , the mean annual and mean monthly depths of snowfall throughout the ...
Сторінка 156
... United States have seen the stones piled up around the bases of the telegraph poles to protect these against being worn through by sand - blasting . In constructing and operating railroads in deserts there is always the problem of an ...
... United States have seen the stones piled up around the bases of the telegraph poles to protect these against being worn through by sand - blasting . In constructing and operating railroads in deserts there is always the problem of an ...
Сторінка 241
... United States of America . " An interest- ing commentary on the letter , which is dated Philadelphia , March 17 , 1791 , one hundred and forty years ago , and which fills sixty - one pages of the Proceedings , are the concluding lines ...
... United States of America . " An interest- ing commentary on the letter , which is dated Philadelphia , March 17 , 1791 , one hundred and forty years ago , and which fills sixty - one pages of the Proceedings , are the concluding lines ...
Зміст
NonLiving and Living Matter BY FRANCIS X DERCUM | 1 |
Its Bearing on the Develop | 15 |
Eye End of Telescope | 35 |
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Alaska alpha particles America on Lambert's American Ammonites anions Argovian atom Aucella beta particles British Columbia Bull Bulletin C. H. Crickmay California Callovian Canada cell chemical cm./sec continuous Cretaceous curve cylinder deposits diffusion early electric electrons engineering Equid erythrocyte evidence F. H. McLearn fact faunas formation fossils G. C. Martin Geanticline Geol geosyncline growth Harrison Lake hemolysis Hindu Hyatt India indicate J. B. Reeside J. S. Diller joules Kimmeridgian Lambert's Azimuthal Projection living magnetic Map number Maps by permission McLearn Meek membrane Mesozoic methods Middle Jurassic mobilities molecules nationality North America nucleus occur orogeny Pacific paleogeography particles permeability Pleistocene positive ions pramaxwells present problem question railroads rationalised region sediments Shakespeare shale Sierra Nevada snow Sonninian southern species substances tetra ethyl lead Tithonian Triassic Twelve Tables U. S. Geological Survey United Unrat Upper Jurassic volcanics