Rural Economy in Its Relations With Chemistry, Physics, And Meteorology : Or, Chemistry Applied to Agriculture
The book Rural Economy in Its Relations With Chemistry, Physics, And Meteorology : Or, Chemistry Applied to Agriculture was written by author J B Jean Baptiste Boussingault Here you can read free online of Rural Economy in Its Relations With Chemistry, Physics, And Meteorology : Or, Chemistry Applied to Agriculture book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Rural Economy in Its Relations With Chemistry, Physics, And Meteorology : Or, Chemistry Applied to Agriculture a good or bad book?
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Goulot, the different species of bark appear to be distributed upon the mountains of New Granada in the following order : Heig'hts where mosi abunilanu Temperature. Gray bark, C.lancifoUa 6560 feet 19°(66iF.) WTiite bark. C. ovalifolia 45264 " i2l° (70 F.) Eed bark. C. oblonsifolia 2296 " 24°(75JF.) Yellow bark, C. cordifolia 1968 " 25° (77 F.) Pelletier and Caventou discovered in the gray bark, 1st, cincho- nme in combination with quinic acid ; 2d, a fatty substance ; 3d, red aud yellow colori...ng matters; 4th, tannin ; 5th, quinate of lime : 6th, gum ; 7th, starch ; 8th, woody matter. In the yellow and red bark these learned chemists found the same principles, and, moreover, quinate of quinine. Barks of the iciUow and poplar. Decoctions of these barks are often employed whh success in the treatment of intermittent fever. In searching after the active principle of these medicines, M. Rouk discovered the particular substance, salicine, in the bark of the wil- low, (salix helix.) the medicinal effect of which is analogous with that of the febrifuge principles of the true barks.
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