This book gives general suggestions relative to the culture, harvesting, distillation, yield, marketing, and commercial prospects for drug plants. Specific information is also given concerning the cultivation, handling, and yield of individual species and the demand and prices paid for the product. Plants covered in this publication are anise, belladonna, sage, and thyme, amongst others.

This is a classic reprint of the Farmers' Bulletin #663, by the United States Department of Agriculture. It's an historical marker of where we were at (in the early part of the 20th century) concerning the manufacture of natural drugs, from medicinal plants.

In describing medicinal plant cultivation, this book deals with the controlling possibilities of biological, economical and technical parameters, which influence the efficiency of the cultivation. It also looks at the special requirements needed for the primary processing of medicinal plants.

This volume focuses on the importance of therapeutically active compounds of natural origin. Natural materials from plants, microbes, animals, marine organisms and minerals are important sources of modern drugs. Beginning with two chapters on the development and definition of the interdisciplinary field of pharmacognosy, the volume offers up-to-date information on natural and biosynthetic sources of drugs, classification of crude drugs, pharmacognosical botany, examples of medical application, WHO ́s guidelines and intellectual property rights for herbal products.