Publisher's Synopsis
Excerpt from Manual of Wireless Telegraphy and Telephony
Since the publication of the first edition of Mr. Collins' Manual of Wireless Telegraphy the newer art of transmitting articulate speech without wires has been reduced to commercial practice.
Wireless telephony employs electric waves as does wireless telegraphy, but the means for producing these waves, as well as their characteristics, are quite different, and in order to bring out the salient features there is appended in this edition a clearly and concisely written treatise by Mr. Newton Harrison.
By a careful perusal of the appended text the wire less operator will obtain a fair working knowledge of the construction and operation of the wireless telephone, and since the new apparatus is rapidly coming into general use this information should prove of great value.
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