As far as I can tell, this is the first English edition.

Out of a total of 860 pages, 186 are devoted to telegraphy and telephony.

I have copied the following sections of the book:

Early Telephones by Reis; Garnier and Pollard’s Singing Condenser; Janssens’s Telephone

Telephones by Bell, Gray, Berliner and Hughes

Telephones of Special Construction by Ader, Breguet, Edison, Dunand, Dolbear, Pisko, Preece

Battery Telephones and Microphones by Berliner, Blake, Boudet, Crossley, Edison, Gower, Heller, Righi;

Ader’s Electrophone; Locht-Labye’s Pantelephone; Wreden’s Phonophore

And some illustrations:

Fein’s Telephone: Ader’s Telephone: D’Arsonval’s Telephone:

Gray’s Telephone: Phelps’s Crown Telephone: Phelps’s Ponny Telephone:

Bottcher’s Telephone: Bottcher’s Telephone Station: Ader’s Telephone Station:

Medical Telephones:

Boudet’s Miophone (Muscle activity)

Boudet’s Sphygmophone (Pulse)

A Medical Microphone (Vein examination)

The Sender of a Photophone:

Edison’s Phonograph:

Back to Mike Penney’s "The Sound of a Voice"