A Treatise On Astronomy Spherical And Physical With Astronomical Problems And Solar Lunar And Other Astronomical Tables For The Use Of Colleges PDF Download

Excerpt from A Treatise on Astronomy, Spherical and Physical: With Astronomical Problems, and Solar, Lunar, and Other Astronomical Tables In the preparation of the present edition the work has been entirely remodelled. The chapters which treat of Astronomical Instruments, Comets, the Fixed Stars, and the Tides, and the portion of the chapter on the Sun, that treats of the Suns Spots and Physical Constitution, and the Zodiacal Light, have been wholly, or mostly, rewritten. Several changes of plan and arrangement have been made with the view of facilitating study and class instruction. The more difficult investigations of astronomical formulæ, occurring in the text of the former editions, have been transferred to the Appendix. On the other hand, the text has been enlarged by giving a more extended description of astronomical facts and appearances, and a more complete discussion of physical phenomena, including a detail of the important results of recent investigations concerning the physical constitution of the different classes of heavenly bodies, and a succinct exposition of the physical theories that have been generally received, or explain the phenomena most satisfactorily. Such theoretical discussions are kept distinct from the universally recognized truths of the science. The results of the authors own investigations on the physical constitution and phenomena of Comets, and on the physical constitution of the Sun, and the origin of the Suns Spots, are briefly given in the same connection. 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.