Synopsis One of the most valuable treasures of Ayurvedic Samhitas, Yogatarangini has so far been confined to a few persons.  Now the present work is being introduced to bring out its latent knowledge to the English speaking people and particularly for the western medical practitioners.  It is an extract of Indian medicine discussed in 56 books ranging from ancient period to later part of the 17th Century AD.  It is a compiled work and masterpiece of Indian Medical System.  This work contains diagnosis, prognosis symptoms and treatment of the diseases in a very comprehensive manner.  It will not only prove to be a modern critical treatise having historical background but also a book which can be relied on for Indian Medical System. It contains at the end several important appendices on plants (with Latin names), diseases etc, and a Sanskrit-English glossary of technical terms used in the text and to crown all this, a valuable deliberation on the entire text by the learned translator.