The Merck Index Eighth Edition 1968 is a comprehensive textbook focusing on chemicals and drugs, making it a valuable resource for science and medical students, as well as adults and vocational students. Published by Merck & Co., Inc., this hardcover book contains 1713 pages of detailed information on various chemicals and drugs. With a publication year of 1968, it serves as a historical reference for those interested in the field of chemicals and drugs. Written in English and originating from the United States. Book is in good vintage condition.