Excerpt from An on Dislocation Dislocations In the classification of the different forms I have sought, while avoiding the introduction of new terms, to group them in a few large classes characterized by some feature of importance in reduction, and to mark the variations by subdivision of these classes the distinguishing feature of a class has usually been the direction of the primary displace ment, and it is also usually indicated in the name given to the class while the names of the subdivisions have been derived from the secondary displacements or from the newly established relations of the dislocated bone. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.