. The botany of crop plants : a text and reference book. Botany, Economic. 526 BOTANY or CROP PLANTS cotton or some other form of cellulose with nitric acid or sulphuric acid. Military guncotton is a mixture of very highly nitrated cellulose nitrates. Less highly nitrated guncotton is soluble in alcohol and ether, and such soluble guncotton is used in the manufacture of collodion, celluloid, etc. Celluloid is made by subjecting a mixture of guncotton, camphor, and other minor substances to great pressure. Collodion is a solution of guncotton in ether and Fig. 217.—Cotton-producing re
. The botany of crop plants : a text and reference book. Botany, Economic. 526 BOTANY or CROP PLANTS cotton or some other form of cellulose with nitric acid or sulphuric acid. Military guncotton is a mixture of very highly nitrated cellulose nitrates. Less highly nitrated guncotton is soluble in alcohol and ether, and such soluble guncotton is used in the manufacture of collodion, celluloid, etc. Celluloid is made by subjecting a mixture of guncotton, camphor, and other minor substances to great pressure. Collodion is a solution of guncotton in ether and Fig. 217.—Cotton-producing regions of the United States. (From Essentials of Geography, Second Book. Copyright, 1916, by Albert Perry Brigham and Charles T. McFarlane. American Book Company, Publishers.) Importance, and Production of Cotton.—Cotton'is the most important fiber plant in the world. The clothing of a great majority of people is cotton. The largest of manufac- turing enterprises are concerned with the production of cotton goods. Cotton is the most important article of world trade. The world's crop in 1910 is estimated at 22,433,269 bales, as 'compared with 15,893,591 bales in 1900. In 1914, the United. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Robbins, Wilfred William, 1884-1952. Philadelphia : P. Blakiston's Son
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