This book On the Principles Of Osteopathy is intended as a manual for the use Of students and practitioners. There has been no effort on the part of the author to do more than give a short, terse exposition Of the essential facts underlying osteopathy. Realizing fully the great effort required to keep pace with the rapid progress of medicine in general, we have tried to include in our chap ters only that which will be solid food for our readers. We have long since learned that the hurried student and busy practitioner have no time to read long dissertations on any subject. Time is an essential factor in covering the necessary studies of an osteopathic curriculum. In order that the student may read these chapters intelligently he must have concluded at least ten months study of Biology, Histology, Anatomy and Physiology. These subjects form the basis of the science of osteopathy.