Portal:Telephony




 * The Telephone and How it Works as it appeared in the March 1878 Popular Science Monthly
 * On Edison's Talking-Machine, by Alfred Marshall Mayer as it appeared in the April 1878 Popular Science Monthly
 * How Sound and Words are Produced, by Alfred Marshall Mayer, by George M. Shaw as it appeared in the May 1878 Popular Science Monthly
 * Edison's Telephonic and Acoustic Inventions as it appeared in the December 1878 Popular Science Monthly
 * The Carbon Button, by Edmund Arthur Engler as it appeared in the May 1880 Popular Science Monthly
 * On the Production of Sound by Light, by Alexander Graham Bell as it appeared in the October 1880 Popular Science Monthly
 * The Telephone, with a Sketch of its Inventor, Philipp Reis as it appeared in the August 1883 Popular Science Monthly
 * Under-Ground Wires, by William W. Jacques as it appeared in the February 1884 Popular Science Monthly