Page:In the high heavens.djvu/7

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IN
THE HIGH HEAVENS

BY

Sir ROBERT S. BALL, D.Sc., LL.D., F.R.S,

LOWNDEAN PROFESSOR OF ASTRONOMY AND GEOMETRY IN THE
UNIVERSITY OF CAMBRIDGE

AUTHOR OF "IN STARRY REALMS," "GREAT ASTRONOMERS," ETC.

WITH NUMEROUS ILLUSTRATIONS

CHEAP EDITION

LONDON: SIR ISAAC PITMAN & SONS, LTD.
BATH AND NEW YORK 1910.