"A book which the merest tyro totally unacquainted with elementary electrical principles can understand, and should therefore especially appeal to the lay reader. Especial interest attaches to the chapter on wireless telegraphy, a subject which is apt to 'floor' the uninitiated. The author reduces the subject to its simplest aspect, and describes the fundamental principles underlying the action of the coherer in language so simple that anyone can grasp them."--_Electricity._ "Contains a clear and concise account of the various forms in which electricity is used at the present day, and the working of the telephone, wireless telegraphy, tramcars, and dynamos is explained with the greatest possible lucidity, while the marvels of the X-rays and of radium receive their due notice. Now that electricity plays such an all-important part in our daily life, such a book as this should be in the hands of every boy. Indeed, older people would learn much from its pages. For instance, how few people could explain the principles of wireless telegraphy in a few words if suddenly questioned on the subject. The book is well and appropriately illustrated."--_Graphic._ "Mr. Gibson sets out to describe in non-technical language the marvellous discoveries and adaptation of this pervasive and powerful essence, and being a most thorough master of the subject, he leads the reader through its mazes with a sure hand. Throughout he preserves a clear and authoritative style of exposition which will be understood by any intelligent reader."--_Yorkshire Observer._ "A popular and eminently readable manual for those interested in electrical appliances. It describes in simple and non-technical language what is known about electricity and many of its interesting applications. There are a number of capital illustrations and diagrams which will help the reader greatly in the study of the book."--_Record._ SEELEY & CO., Ltd., 38 Great Russell Street =THE LIBRARY OF ADVENTURE.= _With 16 Illustrations._ _Extra Crown 8vo._ _Each 5s._ "=Delightful books of adventure, beautifully printed and tastefully got up.="--_Educational Times._ "=Among the more interesting of gift-books--the kind of material that suits the manly boy."=--_Athenæum._ ADVENTURES ON THE HIGH MOUNTAINS. By Richard Stead, B.A., F.R.Hist.S., author of "Adventures on the Great Rivers," &c. ADVENTURES IN THE GREAT FORESTS. By G. W. F. Hyrst, author of "Adventures in the Great Deserts," &c. ADVENTURES IN THE GREAT DESERTS. By G. W. F. Hyrst. "Mr. Hyrst writes vigorously and well in this admirable book. Thoroughly absorbing and extremely readable."--_Liverpool Courier._ ADVENTURES ON THE GREAT RIVERS. By Richard Stead, B.A., F.R.Hist.S. "Attractive and fascinating. From beginning to end the volume is crowded with extraordinary stories of heroism and adventure. It is capitally illustrated."--_Western Daily Press._ HEROES OF THE WORLD LIBRARY