THE LOGICAL MACHINE.

THE PRINCIPLES OF SCIENCE: A TREATISE ON LOGIC AND SCIENTIFIC METHOD.

BY

W. STANLEY JEVONS,

LL.D. (EDINB.), M.A. (LOND.), F.R.S.

London:

MACMILLAN AND CO.

1883.

The Right of Translation and Reproduction is Reserved.

LONDON:
R. Clay, Sons, & Taylor, Printers,
BREAD STREET HILL.