By A. W. Rücker, F.R.S., Professor of Physics in the Royal College of Science, London.
CASSELL & COMPANY, Limited, London; Paris & Melbourne.
SIR WILLIAM HERSCHEL.
Ætat. 50.
(From Abbott’s painting in the National Portrait Gallery.)
THE CENTURY SCIENCE SERIES.
The Herschels
AND
MODERN ASTRONOMY
BY
AGNES M. CLERKE