ELECTRICAL LIBRARY

BY PROF. T. O'CONOR SLOANE,
Comprising five books, as follows:

Arithmetic of Electricity, 138 pages$1.00
Electric Toy Making, 140 pages1.00
How to Become a Successful Electrician, 189 pp.1.00
Standard Electrical Dictionary, 682 pages3.00
Electricity Simplified, 158 pages1.00

The above five books by Prof. Sloane may be purchased singly at the published prices, or the set complete, put up in a neat folding box, will be furnished to Scientific American readers at the special reduced price of Five dollars. You save $2 by ordering the complete set. Five volumes, 1,300 pages, and over 450 illustrations. Send for full table of contents of each of the books.

Our complete book catalogue of 116 pages, containing reference to works of a scientific and technical character, will be sent free to any address on application.

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.