BY J. ELLARD GORE MEMBER OF THE ROYAL IRISH ACADEMY FELLOW OF THE ROYAL ASTRONOMICAL SOCIETY CORRESPONDING MEMBER OF THE ROYAL ASTRONOMICAL SOCIETY OF CANADA ETC. AUTHOR OF “ASTRONOMICAL ESSAYS,” “STUDIES IN ASTRONOMY,” “THE VISIBLE UNIVERSE,” ETC.
LONDON CHATTO & WINDUS 1909
PRINTED BY WILLIAM CLOWES AND SONS, LIMITED LONDON AND BECCLES
