Details
DOLBEAR, Amos Emerson (1837-1910). The Telephone: an account of the Phenomena of Electricity, Magnetism, and Sound, as Involved in its Action. Boston: Lee & Shepard, 1877.
12o (145 x 100 mm). Illustrated throughout. (Some pale stains.) Original green pictorial cloth (rubbed at extremities, lower hinge broken, newspaper clipping laid in rear endleaves). Provenance: Highland Free Library (blind stamp and remains of label on rear endpaper.
FIRST EDITION. "As the speaking-telephone, in which magneto-electric currents were utilized for the transmission of speech and other kinds of sounds, was invented by me, I have described at some length my first instrument, and have also given explicit directions for making a speaking-telephone which I know, by trial, to be as efficient as any hitherto made" (Dolbear from the Preface page vi). The patent for the first telephone was famously granted to Alexander Graham Bell in 1876, even though Dolbear had invented the first telephone receiver with a permanent magnet as early as 1865.
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FIRST EDITION. "As the speaking-telephone, in which magneto-electric currents were utilized for the transmission of speech and other kinds of sounds, was invented by me, I have described at some length my first instrument, and have also given explicit directions for making a speaking-telephone which I know, by trial, to be as efficient as any hitherto made" (Dolbear from the Preface page vi). The patent for the first telephone was famously granted to Alexander Graham Bell in 1876, even though Dolbear had invented the first telephone receiver with a permanent magnet as early as 1865.