A Popular History of Astronomy During the Nineteenth Century / Fourth Edition

by Agnes M. Clerke

THE SYSTEM OF
THE STARS

BY

AGNES M. CLERKE

Hon. Member of the Royal Astronomical Society; Author of "History of Astronomy During the Nineteenth Century" and "Problems in Astrophysics"

SECOND EDITION

Demy 8vo. Cloth. With many Illustrations. Price 20s. net.

(Post Free, Price 20s. 5d.)

FROM THE PREFACE

Fifteen years have elapsed since the original publication of the present work; and fifteen years count as a long spell of time where sidereal research is in question. In preparing the Second Edition, accordingly, I have introduced extensive modifications. Considerable sections of the book have been recast, and all have been thoroughly revised. New chapters have been inserted, old ones have been in large part suppressed. Drastic measures of reform have, in short, been adopted, with results that certainly import progress and (it is hoped) constitute improvements. Most of the illustrations are entirely new; and I am under great obligations for the use of valuable photographs and drawings, among others, to Sir. David Gill, F.R.S., to Professor Hale and the University Press of Chicago, to the Rev. W. Sidgreaves, S.J., to Professors E. C. Pickering, Campbell, Barnard, and Frost, and to Dr. Max Wolf of Heidelberg.

"The work was admirable from the first, imparting the best knowledge of a decade and a half ago; now it retains its high quality by incorporating the newer knowledge."—The Guardian.