PHYSHARMONICA, a musical instrument, in which the immediate sonorous bodies are springs of steel or of brass, thrown into vibration by a current of air impelled against them. It was invented by Hackel, at Vienna, and is an instrument of the same kind as the colodicon, or woline, which was previously invented by Eschenbach, a Bavarian. The same sort of instrument was reproduced in England a few years ago. On the Continent it has been introduced into organs as a very efficient stop. See the article Music for some notices of similar instruments.