Excerpt from Recent Advances in Ophthalmic Science: The Boylston Prize Essay for 1865 I have endeavored, without introducing the nice ties Of abstruse mathematical calculations, to give a concise and clear exposition of the many new facts and principles, Of which the recent demonstration, by Professors Donders, Graefe, Helmholz, and others, has conferred a fresh lustre upon Ophthalmology and' entitled it to a high place among the depart ments of medical science. 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.