Origin and history of all the pharmacopeial vegetable drugs, chemicals and preparations with bibliography Prepared under the auspices of and pub. By the American drug manufacturers' association, Washington, D. C 1. This book, "Origin and history of all the pharmacopeial vegetable drugs, chemicals and preparations", by D.C. Washington, is a replication of a book originally published before 1921. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.