Early texts about other drugs

Amazon A Brief History of Cocaine by Stephen B. Karch
Amazon The Opium Problem by Charles E. Terry and Mildred Pellens
Amazon Sisters of the Extreme: Women Writing on the Drug Experience edited by Michael Horowitz and Cynthia Palmer
Amazon Narcotic Plants of the Old World, Used in Rituals & Everyday Life : An Anthology of Texts from Ancient Times to the Present edited by Hedwig Schleiffer
Amazon The Seven Sisters of Sleep by Mordecai C. Cooke
Amazon Confessions of an English Opium Eater by Thomas DeQuincey