Aids to Materia Medica, Part 3 is a book written by William Murrell and originally published in 1900. The book is a comprehensive guide to the study of materia medica, which is the branch of medicine concerned with the study of drugs and their effects on the human body. The book is divided into several sections, each of which covers a specific aspect of the subject. The first section provides an overview of the history of materia medica and the various...