FOR SALE BY
JAMES HOPE & SON, OTTAWA; THE COPP-CLARK CO. (LIMITED), TORONTO
BERNARD QUARITCH. LONDON, ENGLAND
1901
_EDITOR OF TRANSACTIONS._
SIR JOHN BOURINOT, K.C.M.G., LL.D., D.C.L., Lit. D. (Laval),
_Honorary-Secretary.
_PRINTING COMMITTEE._
DR. S.E. DAWSON. DR. GEORGE STEWART,
SIR JOHN BOURINOT.
IV.-The New Gas from Radium.
By E. Rutherford, M.A., D.Sc.
Macdonald Professor of Physics, McGill University, Montreal;