THE

INTERNATIONAL SCIENTIFIC SERIES.

VOL. XXXIII.

SIGHT:

TY

AN EXPOSITION OF THE PRINCIPLES

OF

MONOCULAR AND BINOCULAR VISION.

AUTHOR OF

BY

JOSEPH LE CONTE, LL.D.

61
ELEMENTS OF GEOLOGY,' RELIGION AND SCIENCE," AND PROFESSOR OF
GEOLOGY AND NATURAL HISTORY IN THE UNIVERSITY OF CALIFORNIA.

WITH NUMEROUS ILLUSTRATIONS.

THIRD EDITION.

LONDON:

KEGAN PAUL, TRENCH, TRÜBNER & CO. LTD.

PATERNOSTER HOUSE, CHARING CROSS ROAD.

1895.