"A volume well worth reading, and if any one is not sure how to light his house, he will certainly, after perusing it, decide in favour of electricity."—The Engineer.

The Internal Wiring of Buildings.

By H.M. LEAF, A.M., Inst.C.E., M.I.M.E.

With many Illustrations and Diagrams.

Crown 8vo, 3s. 6d.

"This is a book which every hardwareman should put in the hands of his foreman in the Electrical Department."—The Hardwareman.

LABORATORY NOTE BOOK.

For Chemical Students. By VIVIAN B. LEWES.

(Professor of Chemistry, Royal Naval College)

and J.S.S. BRAME.