We cannot permit the receipt of Sloane's Electrical Library to pass by without complimenting you upon the same. It is a most admirable work. Should be in the hands of all those who are interested in electricity.

PHILLIPS, ORMONDE & CO., Engineers.
Melbourne, Victoria.

I was highly pleased with the copy of Sloane's Electrical Library, which arrived in good condition. It is one of the most valuable works I possess in my library. The use of the Roentgen Rays in my profession has stimulated my desire for electrical knowledge greatly, and I consider Sloane's "Electrical Dictionary" a first-class book of reference. I shall be pleased to recommend it to my colleagues in search of such a work. Yours truly,

P.J. CLENDINNIN, M.D.,
Hon. Medical Electrician to the Melbourne Hospital.

MUNN & CO., Publishers, New York.


JUST PUBLISHED.

Second Edition, Revised and much Enlarged.

Gas, Gasoline and Oil Engines

By GARDNER D. HISCOX, M.E.
The only American Book on the Subject.