Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Том 70American Philosophical Society, 1931 |
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Сторінка 146
... considerable expense . The difficulty of budgeting the cost of snow removal is the extreme variability in the depth of a winter's snows . A single heavy storm may cost as much for removal as do all the storms of some other year . Hence ...
... considerable expense . The difficulty of budgeting the cost of snow removal is the extreme variability in the depth of a winter's snows . A single heavy storm may cost as much for removal as do all the storms of some other year . Hence ...
Сторінка 149
... considerable item . A new method of fighting frozen switches was recently reported in use in the Hudson River Terminal yards of one of the great eastern railroads.1 A special steam plant , costing $ 2000 a year to run , is operated for ...
... considerable item . A new method of fighting frozen switches was recently reported in use in the Hudson River Terminal yards of one of the great eastern railroads.1 A special steam plant , costing $ 2000 a year to run , is operated for ...
Сторінка 184
... considerable ; in the sap of Valonia the internal concentration is maintained at a value several hundred times as great as that in the surrounding alkaline sea water . In the developing erythrocyte ( which , incidentally , in its early ...
... considerable ; in the sap of Valonia the internal concentration is maintained at a value several hundred times as great as that in the surrounding alkaline sea water . In the developing erythrocyte ( which , incidentally , in its early ...
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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