The Merck Index. En encyclopedia of chemicals, drugs, and biologicals. In Russian (ask us if in doubt)/The Merck Index. En encyclopedia of chemicals, drugs, and biologicals. ( Khimicheskiy spravochnik Merka) 14th edition. USA. Published by Merck Research Laboratories. 2006 and disc. Famous chemical reference book. Merck index includes: descriptions of chemicals (approximately 11,500 articles, list of named reactions, various tables of cross references. SKUalb9267d8c498ad8c7f.