Vertebrates  physiology  readings from Scientific American 
(compiled) with introductions by Norman K. Wessells 
 - San Francisco  W. H. Freeman  1980 
 - 263 p. ; 29 cm. 
<br/><br/>p. 251-256 
<br/><br/><label>ISBN: </label>0716711982 
<br/><br/><label>LCCN: </label>79-28748 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vertebrates--Physiology--Addresses, essays, lectures