On Laboratory Arts

by Richard Threlfall

ON LABORATORY ARTS

BY

RICHARD THRELFALL, M.A.

PROFESSOR OF PHYSICS IN THE UNIVERSITY OF SYDNEY;

MEMBER OF THE INSTITUTE OF ELECTRICAL ENGINEERS;

ASSOCIATE-MEMBER OF THE INSTITUTE OF CIVIL ENGINEERS;

MEMBER OF THE PHYSICAL SOCIETY

London

MACMILLAN AND CO., LIMITED

NEW YORK: THE MACMILLAN COMPANY