Helmholtz, H.von and others <br/><br/>
Helmholtz's Treatise on Physiological Optics 
Volume I 
 - New York  Dover Publications, Inc.  1962 
 - 479 
<br/><br/><label>Publisher. No.: </label> Higginbothams (P) Ltd. 
<br/><br/><label>Subjects--Personal Names: </label> Zoology 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoology