CHAPTER X

"Maize," by Edward Alber (Bulletin of the Pan-American Union, January, 1915).

"Glucose," by Geo. W. Rolfe (Scientific American Supplement, May 15 or November 6, 1915, and in Boger's "Industrial Chemistry").

On making ethyl alcohol from wood, see Bulletin No. 110, Special Agents' Series, Department of Commerce (10 cents), and an article by F.W. Kressmann in Metallurgical and Chemical Engineering, July 15, 1916. On the manufacture and uses of industrial alcohol the Department of Agriculture has issued for free distribution Farmer's Bulletin 269 and 424, and Department Bulletin 182.

On the "Utilization of Corn Cobs," see Journal of Industrial and Engineering Chemistry, Nov., 1918. For John Winthrop's experiment, see the same Journal, Jan., 1919.