BY
ERNST MACH
FORMERLY PROFESSOR OF PHYSICS IN THE UNIVERSITY OF PRAGUE, NOW PROFESSOR OF THE HISTORY AND THEORY OF INDUCTIVE SCIENCE IN THE UNIVERSITY OF VIENNA
TRANSLATED
BY
THOMAS J. McCORMACK
THIRD EDITION, REVISED AND ENLARGED
WITH FIFTY-NINE CUTS AND DIAGRAMS
CHICAGO
THE OPEN COURT PUBLISHING COMPANY
FOR SALE BY
Kegan Paul, Trench, Truebner & Co., LONDON
1898