RAYS OF
POSITIVE ELECTRICITY

AND THEIR APPLICA^MJ ^TO
CHEMICAL
SIR J. J. THOMSON, O.M., F.R.S.
CAVENDISH PROFESSOR OF EXPERIMENTAL PHYSICS, CAMBRIDGE
PROFESSOR OF NATURAL PHILOSOPHY AT THE ROYAL INSTITUTION, LONDO^

WITH ILLUSTRATIONS
LONGMANS, GREEN AND CO.
39 PATERNOSTER ROW, LONDON
NEW YORK, BOMBAY AND CALCUTTA

1913