Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Том 70American Philosophical Society, 1931 |
З цієї книги
Результати 1-3 із 18
Сторінка 140
... snowfall is an important factor in railroad operation means a saving of money , time and labor ; results in increased net income , and may contribute not a little to increased dividends . The motive power usually employed in fighting snow ...
... snowfall is an important factor in railroad operation means a saving of money , time and labor ; results in increased net income , and may contribute not a little to increased dividends . The motive power usually employed in fighting snow ...
Сторінка 144
... snow - covered mountains , and thus avoiding the expense of snow - fighting , as well as shorten- ing the running time , is another important problem for the railroads to settle . The initial expense is vast , but in the long run of the ...
... snow - covered mountains , and thus avoiding the expense of snow - fighting , as well as shorten- ing the running time , is another important problem for the railroads to settle . The initial expense is vast , but in the long run of the ...
Сторінка 146
American Philosophical Society. The snow - removal bill of the American railroads within the snow - belt is almost unbelievably large , and goes up or down with the varying amounts of snowfall in different years . Innumerable statistics ...
American Philosophical Society. The snow - removal bill of the American railroads within the snow - belt is almost unbelievably large , and goes up or down with the varying amounts of snowfall in different years . Innumerable statistics ...
Зміст
NonLiving and Living Matter BY FRANCIS X DERCUM | 1 |
Its Bearing on the Develop | 15 |
Eye End of Telescope | 35 |
32 інших розділів не відображаються
Інші видання - Показати все
Загальні терміни та фрази
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