Philipp Reis: Inventor of the Telephone
A Biographical Sketch
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PHILIPP REIS:
PREFACE.
PHILIPP REIS.
CHAPTER I. BIOGRAPHY OF THE INVENTOR.
CHAPTER II. THE INVENTOR’S APPARATUS.
A.—Reis’s Transmitters.
First Form.—The Model Ear.
Second Form.—Tin Tube.
Third Form.—The Collar-box.
Fourth Form.—The Bored-Block.
Fifth Form.—The Hollow Cube.
Sixth Form.—The Wooden Cone.
Seventh Form.—“Hochstift” Form.
Eighth Form.—Lever Form.
Ninth Form.—Transitional Form.
Tenth Form.—The Square Box.
B.—Reis’s Receivers.
First Form.—The Violin Receiver.
Second Form.—The Cigar-box Receiver.
Third Form.—The Electro-magnet Receiver.
Fourth Form.—The Knitting-needle Receiver.
CHAPTER III. THE CLAIM OF THE INVENTOR.
I.—Reis’s Telephone was expressly intended to transmit speech.
II.—Reis’s Telephone, in the hands of Reis and his contemporaries, did transmit speech.
III.—Reis’s Telephone will transmit speech.
CHAPTER IV. CONTEMPORARY DOCUMENTS.
[1.] On Telephony by the Galvanic Current. By Philipp Reis.
[2.] On the Transmission of Tones to a Distance as far as desired, by the help of Electricity (Telephony).
[3.] Telephony, i.e. Sound-Transmission [Translation from ‘Didaskalia,’ May 8th, 1862.]
[4.] Translation from ‘Didaskalia,’ 12th May, 1862.
[5.]On the Reproduction of Tones in the Electro-Galvanic Way. By v. Legat, Inspector of the Royal Prussian Telegraphs in Cassel.
[6.]Aus der Natur. (Vol. xxi. 1862. July-October. pp. 470-474.)
[7.][Extract From the Annual Report of the Physical Society of Frankfort-on-the-main (1863).]
[8.]Letter of Philipp Reis.
[9.] Reis’s Prospectus.
TELEPHON.
[10.] On the Improved Telephone.
[11.]
[12.] [Extract from the ‘Twelfth Report of the Upper-Hessian Association for Natural and Medical Science,’ (‘Oberhessische Gesellschaft für Natur und Heilkunde,’) Giessen, February 1867.]
[13.] Extract from the Report of the German Naturalists’ Society, held at Giessen (1864).
[14.] Extract from Müller-Pouillet’s ‘Textbook of Physics and Meteorology’ (Lehrbuch der Physik und Meteorologie).
[15.] Extract from Pisko’s ‘Die Neueren Apparate der Akustik.’
[52.] Details about the Telephone.
[53.] Experiments with the Telephone.
[16.] Hessler’s ‘Text-book of Technical Physics,’ vol. i. p. 648.
[17.] Kuhn’s ‘Handbook of Applied Electricity,’
CHAPTER V. TESTIMONY OF CONTEMPORARY WITNESSES.
Professor G. Quincke, Professor of Physics in the University of Heidelberg.
Professor C. Bohn.
Léon Garnier.
Ernest Horkheimer, Esq.
Dr. Rudolph Messel.
Heinrich Hold.
Heinrich Friedrich Peter.
Stephen Mitchell Yeates, Esq.
William Frazer, Esq., M. D.,
APPENDIX I. Comparison of Reis’s Transmitters with Recent Instruments.
APPENDIX II. On the Variation of Electric Resistance at a Point of Imperfect Contact in a Circuit.
APPENDIX III. Comparison of Reis’s Receivers with Recent Instruments.
APPENDIX IV. On the Doctrine of Undulatory Currents.
ADDITIONAL PREFERENCES CONCERNING REIS’S TELEPHONE.
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