Annual Report of the Board of Regents of the Smithsonian InstitutionThe Institution, 1921 |
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Сторінка 217
... months our production of propellants was 632,504,000 pounds , an amount practically equal to the combined production ... month , and the necessity for a greatly in- creased supply for conversion into trinitrotoluol or T. N. T. pre ...
... months our production of propellants was 632,504,000 pounds , an amount practically equal to the combined production ... month , and the necessity for a greatly in- creased supply for conversion into trinitrotoluol or T. N. T. pre ...
Сторінка 218
... month 19 months later , and of this a considerable proportion was produced synthetically from benzol . Picric acid , which is made from phenol by treatment with nitric and sulphuric acids , constitutes the chief explosive used by the ...
... month 19 months later , and of this a considerable proportion was produced synthetically from benzol . Picric acid , which is made from phenol by treatment with nitric and sulphuric acids , constitutes the chief explosive used by the ...
Сторінка 290
... month was only imperfectly chilled and although it started growing the growth was from abnormally few buds . But the plant at the extreme right , under refrigeration for two months was adequately chilled and started into growth from ...
... month was only imperfectly chilled and although it started growing the growth was from abnormally few buds . But the plant at the extreme right , under refrigeration for two months was adequately chilled and started into growth from ...
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Bureau of American Ethnology | 17 |
Report on the United States National Museum | 25 |
EXECUTIVE COMMITTEE AND REGENTS | 100 |
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