Issued February 10, 1912. U. S. DEPARTMENT OF AGRICULTURE, BUREAU OF CHEMISTRY— BULLETIN No. 147. H. \Y. WILEY, Chief of Bureau. COAL-TAR COLORS USED IN FOOD PRODUCTS. BY BERNHARD C. HESSE, Ph. D. Expert, Bureau Chemistry. … w \sinv. \-\mi \t im::\ 18U.
Coal-tar colors · Coloring matter in food
Internet Archive · University of Florida, George A. Smathers Libraries · Public domain (published before 1931). Free to use for anything.
