Show I US USE OF ARTIFICIAL R I L VOICE ICE IS DEMONSTRATED I T L 7 L r e A i 7 5 i I t 4 7 I s p 43 S t 4 4 ij r 4 a A A Ar M 4 r- r Upper Upper Clarence Clarence Peterson of at Ephraim dem demonstrates the metal to to fellows of the Voice box enabling him speak without a larynx American College of Surgeons at a a. clinic cUnic in the L. L D. D S. S hospital Lower left to right Dr Malcolm T T. MacEachern of Chicago associate associate asso nasa date director of othe the college and director of hospital activities Robert obert Jolly Houston Texas president elect lect American Hospital association and D Dr Robert B. B Greenough Boston Mass president elect American Amer lean ican College of Surgeons |