Excerpt from Progressive Medicine, Vol. 1: A Quarterly Digest of Advances, Discoveries and Improvements in the Medical and Surgical Sciences; March, 1909 The Technique of Craniotomy. Bryant1 gives a brief description of a new motor which he recommends for operations upon the skeleton, being especially adapted to cutting osteoplastic flaps. He claims it to be the first practical application of well-known electrical principles in such a way as to combine three-tenths horsepower with a weight of only 7 pounds, about one-eighth of that of the ordinary motor of equal power. It can readily be held in the hand, and in this way solves the problem of shafting or gearing, by doing away with both. The speed of the motor is revolutions per minute. With this high velocity the instrument cuts bone with great rapidity. Because of its high speed a phrase is used with only one cutting edge which cannot clog. The phrase does not heat at all, as the heat generated is taken up by the chips. 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.