"Even a casual glance through the many pages of the book does not fail to emphasize the fact that Mr. Alfred P. Morgan has indeed succeeded well in giving the juvenile electricians a work that has long been sought."—Popular Electricity. "We have no hesitation in commending the book to the attention of the juvenile audience for which it is intended."—Boston Post. "A great book for enterprising boys. Bright boys will highly appreciate it and feel like thanking the wideawake publishers for putting such a reliable and interesting work in the field."—New Haven Journal. "The book covers the subject of electricity thoroughly in all its phases and is a splendid acquisition to any boy’s library."—Detroit Times. "In this age of electricity a book like the present one is both fascinating and valuable especially to boys. The book is attractive with its many illustrations and will prove of much educational value for any bright boy."—Zion’s Herald. "This is an admirably complete and explicit handbook for young boys who fall under the spell of tinkering with electrical apparatus."—Boston Transcript. "Well presented and attractive this book will be a source of great benefit and delight for any bright boy."—New Orleans Times-Picayune. *Price, $2.00, Postpaid* COUNTLESS OTHER MAGAZINES, NEWSPAPERS AND LIBRARIES HAVE ENDORSED THIS GREAT BOOK. SEND FOR A COPY NOW. *If you are interested in this great book, write for our 8-page special* *descriptive circular.* *Experimental Wireless Construction* *EIGHTY-SIX PAGES NINETY-THREE ILLUSTRATIONS* *Only 25 Cents, Postpaid* Here at last is the book which every young experimenter interested in constructing his own wireless apparatus has been looking for. A book which tells how to build apparatus which anyone would be proud to own. It is a more advanced book than "Wireless Construction and Installation for Beginners," and describes apparatus which is much more elaborate and sensitive. The instruments have all been the subject of considerable experimental work and study. All the apparatus has been put to practical test and carefully improved by clever experts. By purchasing this book you get the benefit of vast knowledge and experience and are enabled to build far better instruments than by following your own designs and haphazard methods. THE TREMENDOUS POPULARITY OF THIS VALUABLE LITTLE BOOK IS ONLY AN INDICATION OF ITS GREAT WORTH. It has only been on the market a short time, yet the sales will undoubtedly soon reach a point which would indicate that experimenters unquestionably consider, that in proportion to its size, it is the best book on the market.