Excerpt from Neurological Bulletin, 1921, Vol. 3: Clinical Studies of Nervous and Mental Diseases in the Neurological Department of Columbia University In each of these periods, the goal is differ ent - hence the necessity of a difference in equipment. A lack of equipment in any of the stages, or a gross lack of unity or precision in the arrival of the different factors at any of the critical moments of the struggle, de termines the failure of the individual in the competition. It is our problem to investigate this equip ment and see wherein such failure consists; the results of such failure upon the organ ism, and if possible, its prevention and remedy. 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.