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FELLOW OF THE ROYAL SOCIETY,
FELLOW OF THE ROYAL ASTRONOMICAL SOCIETY,
HONORARY FELLOW OF THE YORKSHIRE PHILOSOPHICAL SOCIETY,

EDITOR OF " THE HEAVENS,” ETC.

NEW EDITION.

London :
MACMILLAN AND CO.

1871.

[The Right of Translation and Reproduction is reserved. )

LONDON:

R. CLAY, SONS, AND TAYLOR, PRINTERS,

BREAD STREET HILL.

gt-wently 3-26-39

PREFACE.

are in

(5.29-39MEC

THESE “ Elementary Lessons in Astronomy
tended, in the main, to serve as a text-book for use
in Schools, but I believe they will be found useful to
“ children of a larger growth,” who wish to make them-
selves acquainted with the basis and teachings of one of
the most fascinating of the Sciences.

The arrangement adopted is new; but it is the result of much thought. I have been especially anxious in the descriptive portion to show the Sun's real place in the Cosmos, and to separate the real from the apparent movements. I have therefore begun with the Stars, and have dealt with the apparent movements in a separate chapter.

It may be urged that this treatment is objectionable, as it reduces the mental gymnastic to a minimum ; it is right, therefore, that I should state that my aim throughout the book has been to give a connected view of the whole subject rather than to discuss any particular parts of it; and to supply facts, and ideas founded on the facts, to serve as a basis for subsequent study and discussion. A companion volume to the present one-I allude to the altogether admirable " Popular Astronomy' from the pen of the Astronomer Royal-may, from this point of view, be looked upon as a sequel to two or three chapters in this book.

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