Notes On Pharmacognosy is a book written by Otto Augustus Wall and first published in 1902. The book is a comprehensive guide to the study of medicinal plants and natural products used in medicine. Pharmacognosy is the study of the physical, chemical, biochemical, and biological properties of drugs, drug substances, and medicinal plants. The book covers a wide range of topics related to pharmacognosy, including the history of medicinal plants, their...