Three New Books on Home Made
Electrical Apparatus
or rather, three parts of one book, each 25 cents per copy, are now in preparation and should be ready in June, 1917.
They will cover every kind of electrical apparatus, including primary and storage batteries, dynamos and motors, induction coils, rectifiers, transformers, telegraphs and telephones, etc.—all of which have actually been built.
The three parts will also be furnished as a single volume in cloth covers at $1.00 per copy, postpaid.
If interested, simply send us a postal and when the books are ready we will send you full descriptions.
COLE & MORGAN
Publishers of the Arts and Sciences Series
P. O. Box 1473 NEW YORK, N. Y.
*** END OF THIS PROJECT GUTENBERG EBOOK LESSONS IN WIRELESS TELEGRAPHY ***