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DISCUSSION 



Hallowell Davis 

 Central Institute for the Deaf, St. Louis, U.S.A. 



Dr. Beidler has told us that the receptor cells of the taste buds are con- 

 stantly formed at the periphery of the buds and move inward toward the 

 center of each bud as they mature. The rate of replacement is rapid and 

 the average life of a receptor cell is only a few days. Obviously one or 

 more nerve fibers must make contact with each new cell in turn. Dr. Beidler 

 further suggested, in response to my question, that the nerve fibers do not 

 migrate inward with the receptor cells, but that the receptor cells are 

 passed along, so to speak, from one set of nerve fibers to another. 



