Hans W. Maier
Leipzig: George Thieme, 1926.

A professor at the University of Zurich, Maier conducted investigations into the clinical and therapeutic effects of cocaine on users, which included pioneering work on hallucinations and paranoia during his time working at the clinic of Dr. Bleuler. Includes geographical, physiological, and historical background of coca and cocaine along with a comprehensive bibliography. A major work on the subject especially with regard to the history and development of cocaine dependence.