Abstract :
On the evening of Friday, November 8th, the New York Section members will have the privilege of attending a lecture and demonstration by S. P. Grace, Asst. Vice-President of the Bell Telephone Laboratories, Inc. disclosing some of the most recent wonders of science in the field of sound transmission. Just a glance over the modern marvels to be illustrated and explained will reveal the electric ear, scrambled speech, delayed speech, double-ended short wave high power radio tubes, amplified muscle noises, translation of mechanical impulses into speech, the artificial larynx, and so on down the list of the latest work in sound transmission — the results of organized effort to extend the range of the human voice. Mr. Grace has shown that he can entertain audiences of every type, scientists and laymen. The Program Committee feels that this is an unusual opportunity to spend not only a particularly interesting and instructive evening, but it is as sure that all will go away with a fuller realization of the place of science in American progress. The meeting will be held at 8 p. m. in the Engineering Auditorium, 33 West 39th Street, New York, N. Y.