SIR ROBERT STAWELL BALL, LL.D. D.Sc.
Author of "Star-Land"
FELLOW OF THE ROYAL SOCIETY OF LONDON, HONORARY FELLOW OF THE ROYAL SOCIETY OF
EDINBURGH, FELLOW OF THE ROYAL ASTRONOMICAL SOCIETY, SCIENTIFIC ADVISER TO THE
COMMISSIONERS OF IRISH LIGHTS, LOWNDEAN PROFESSOR OF ASTRONOMY AND
GEOMETRY IN THE UNIVERSITY OF CAMBRIDGE, AND FORMERLY
ROYAL ASTRONOMER OF IRELAND
WITH TWENTY-FOUR COLOURED PLATES AND NUMEROUS
ILLUSTRATIONS
NEW AND REVISED EDITION
CASSELL and COMPANY, Limited
LONDON, PARIS, NEW YORK & MELBOURNE
1900
ALL RIGHTS RESERVED
