Excerpt from The Electro-Magnet and Its Employment in Ophthalmic Surgery: With Special Reference to the Detection and Removal of Fragments of Steel or Iron From the Interior of the Eye The remarks in these pages have reference almost entirely to the electro-magnet. Before devising the instrument to which attention will presently be directed, various experiments were made with simple magnets of different sizes and kinds. The difficulty always presented itself of obtaining by this means a sufficiently small extremity for introduction into the eye, and yet at the same time to exert attractive forceenough to make it of practical value in the majority of cases. 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.