Pharmacognosy, known initially as Materia Medica, may be defined as the study of crude drugs obtained from plants, animals and mineral kingdom and their constituents. These are also used for treating various diseases, besides, in the cosmetics, textile and food industries. This book covers all the subjects comprehensively that are required by the student of Pharma. Topics like metabolic pathways in higher plants, secondary metabolic, isolation, identification and analysis of phytoconstituents, industrial production, phytochemistry, spectroscopy techniques, chromatography and its applications and electrophoresis. This book is a precious resource of data for the students of allied botanical and phytochemical sciences.