The American Monthly Microscopical Journal Vol 18

Excerpt from The American Monthly Microscopical Journal, 1897, Vol. 18: Containing Contributions to Biology While the idea of the arrangement in the experiment below detailed is suggested from a study of the Abb' form of apertometer, it is essentially different in half the technique. For the benefit of those who are not familiar with the instrument and in the hope that I may make the proposed modification plainer, it may not be amiss to attempt a short explanation of its working, particularly as this is not done in the Zeiss catalogue. It consists essentially of (a) an auxiliary objective and (b) the plate glass semicircular and prismatic disc. 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.