Excerpt from Archives of Medicine, Vol. 12: A Bi-Monthly Journal Devoted to Original Communications on Medicine, Surgery, and Their Special Branches; October, 1884 It is sought, by this theory, to explain certain phenomena Of abnormal vision which have been found associated with affections Of the brain. These phenomena are 1, The ah sence of the perception of color, the senses of form, and light being intact 2, the absence Of color and form-perception, the sense of illumination being left 3, the total abolition of the sense of vision when light-perception is destroyed. In an attempt to explain these clinical manifestations, the following facts are to be remembered, stating them in an inverse order to the above: 1, that the sense of light is never lost without a concomitant disappearance Of the senses Of form and color; 2, there is never a loss of the sense of form without an associated loss of the sense Of color - with an apparent exception which we Shall notice later; 3, the sense of color may be lost, while the senses of form and light are intact. 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.