The American Monthly Microscopical Journal, Vol. 19

Download or read book The American Monthly Microscopical Journal, Vol. 19 written by and published by Forgotten Books. This book was released on 2017-07-28 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The American Monthly Microscopical Journal, Vol. 19: For 1898 Astronomy. - the microscope is useful in astronomy (1) As applied to the graduated arcs of measuring circles in astronomical instruments of precision, and to the fine divisions on the measuring rods used in determining a base-line, -the fundamental measurement in astronomy. The microscope micrometer, which contains the micros cope as an essential part, is used extensively (2) In the measurement of the position of stars on the astro-photo graphic Chartsand plates obtained by the International Con gress for their catalogue of all stars of the first eleven mag nitudes; (3) In the determination of differential stellar parallax from photographic plates; (4) In the study and observation of the heavenly bodies as advances in astro nomical photography make it possible to produce slides of sufficient fineness for the purpose. 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.