Excerpt from A Plea for Reflectors: Being a Description of the New Astronomical Telescopes With Silvered-Glass Specula; And Instructions for Adjusting and Using Them In one part of the heavens in the constellation of Gemini, where seven stars are visible to the naked eye, the same space is represented, on a telescopic star map constructed by M. Chacornac, as containing stars, and these were seen with a telescope of only six inches aperture. Sir William Herschel estimated the number of stars in the bright zone, known as the milky way, at eighteen millions, and Chacornac considers this estimate far too small. 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.