INTERNATIONAL SCIENTIFIC SERIES.

VOLUME XCII.

EDITED BY F. LEGGE

THE RADIOACTIVE

SUBSTANCES

THEIR PROPERTIES AND BEHAVIOUR

BY

WALTER MAKOWER

ASSISTANT LECTURER IN PHYSICS, VICTORIA UNIVERSITY
MANCHESTER

LONDON

KEGAN PAUL, TRENCH, TRÜBNER & CO. LTD

DRYDEN HOUSE, GERRARD STREET, W.