Merck Index, 14th ed. 

One of the best books and best buys is now better! The 14th edition is a book and CD-ROM encyclopedia of chemicals, drugs, and biologicals that contains more than 10,000 monographs. An expanded therapeutic category index covers more than 40 new categories and crossreferences. New features include (a) text searchable CD-ROM plus complementary one year personal subscription to CSC's structure searchable web version, (b) more than 600 new or completely rewritten monographs plus significant updates to more than 50% of the existing monographs, and (c) quick reference to fundamental information on compounds of current interest.