Raoul Husson started a veritable revolution in 19501 as far as the physiology of the vibration of the vocal cords is concerned. He did not merely attempt to change some of the previously accepted opinions but proposed a basic change of nearly all concepts which up to that time had been considered valid. The discussion of this completely new approach to vocal physiology has become a widespread international matter, but the American literature has not taken up the subject in its full breadth, and only some stray assents and objections have been published.2,3 Although I was opposed to this trend of thinking from its beginning,* I shall try to characterize the approach of the Husson school with the greatest possible objectivity and then bring forward the arguments which oblige us to reject the contention of Husson. His basic hypothesis consists in supposing that the vocal cords contract actively