Chemical Dictionary. Based on recent chemical literature, containing the words generally used in chemistry, and many of the terms employed in the related sciences of physics, astrophysics, mineralogy, pharmacy and biology, with their pronunciations. By Ingo W. D. Hackh, professor of Chemistry, College of Physicians and Surgeons. Author of “Chemical Reactions and Their Equations.” Publishers, P. Blakiston's Son & Co., Inc., 1012 Walnut St. Philadelphia. Large octavo, 790 pages, 232 illustrations and over 100 tables. Fabricoid, $10.00