THE AUTHOR’S OBSERVATORY.

THE
PRACTICAL ASTRONOMER,
COMPRISING
ILLUSTRATIONS OF LIGHT AND COLOURS—PRACTICAL
DESCRIPTIONS OF ALL KINDS OF TELESCOPES—THE
USE OF THE EQUATORIAL-TRANSIT—CIRCULAR,
AND OTHER ASTRONOMICAL
INSTRUMENTS,
A PARTICULAR ACCOUNT OF THE
EARL OF ROSSE’S LARGE TELESCOPES,
AND OTHER TOPICS CONNECTED WITH ASTRONOMY.
BY THOMAS DICK, LL.D.
AUTHOR OF THE “CHRISTIAN PHILOSOPHER,” “CELESTIAL SCENERY,”
“THE SIDEREAL HEAVENS,” &C. &C.
Illustrated with One hundred Engravings.
SEELEY, BURNSIDE, AND SEELEY,
FLEET-STREET, LONDON.
MDCCCXLV.

PRINTED BY L. SEELEY.