PR

83

W46 1882

ALFRED H. WELSH, A.M.

MEMBER OF VICTORIA INSTITUTE, THE PHILOSOPHICAL SOCIETY OF GREAT BRITAIN

VOLUME I

All profitable study is a silent disputation - an intellectual gymnastic; and the most
improving books are precisely those which most excite the reader. . . . To read pas-
sively, to learn,-is, in reality, not to learn at all.-SIR WILLIAM HAMILTON

THIRD EDITION.

CHICAGO

S. C. GRIGGS AND COMPANY

1883