Page:Popular Astronomy - Airy - 1881.djvu/5

POPULAR

ASTRONOMY:

A SERIES OF LECTURES

DELIVERED AT IPSWICH.

BY

SIR GEORGE BIDDELL AIRY, K.C.B.,

ASTRONOMER ROYAL.

TENTH EDITION.

${\mathfrak {London:}}$

MACMILLAN AND CO.

1881

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