Perhaps the most complete reference work available for over 10,000 chemical substances. Chemicals, drugs and biologicals are exhaustively examined. The Merck Index has been published for 95 years. Written and edited by several generations of Merck chemists, this one-volume encyclopedia is an established reference. The Merck Index is continually revised to include updated information regarding physical properties, chemical significance and structural drawings. Valuable references, formula indices and a series of miscellaneous tables for the science teacher that runs the gamut from making buffer solutions to specific gravity comparisons. Used by the chemists at Flinn on a daily basis. Includes a searchable companion CD-ROM. Over 2,300 pages, 7" x 10", hard cover.