154 



THE EYE IN EVOLUTION 



Fig. 133.— Johannes Muller (1801-18.18). 



The Compound Eye 



Nothing could be more suitable to introduce this section on the anatomy 

 and physiology of the compound eye than the portrait of Johannes mxjllee 

 (1801-1 :-^s (Fig. 133), Professor of Physiology first at Bonn and then at Berlin, 

 a studeii friend and collaborator of von Helmholtz. In association with 

 Malpighi , Haller, he may be considered the fovmder of the great German 

 School of . -iology of the 19th century. Throughout his relatively short 



