Excerpt from The Blot Upon the Brain: Studies in History and Psychology<br><br>N, the following pages the study of diseased function of the brain has helped the author to give explanations of some important events in history. In a similar way several ques tions in psychology are approached through knowledge gained by observations in mental derangement.<br><br>In perusing the opening essay on Hallucinations, the reader will derive assistance from the plates in the last paper.<br><br>It is hoped that the interest of the subjects treated will attract persons of culture beyond those directly interested in medical psychology. The author has tried to avoid technical terms, as far as clear definition seemed to allow.<br><br>It is hoped that a rudimentary knowledge of physiology is now sufficiently diffused to make the more scientific papers understood by educated people without any preliminary study.<br><br>In those essays, which have already appeared in the Journal of Mental Science, and in Brain, there have been considerable changes and additions, save in Paper V., which is reprinted almost word for word, and in Paper IX in which the new matter comes at the end.<br><br>About the Publisher<br><br>Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com<br><br>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.