184 BIOLOGY AND ITS MAKERS 



nine, and had already entered upon his career as the lead- 

 ing physiologist of Germany. What Bell had divined he 

 demonstrated by experiments. 



Charles Bell (Fig. 55) was a surgeon of eminence; in 

 private life he was distinguished by " unpretending amenity, 

 and simplicity of manners and deportment." 



FIG. 55. CHARLES BELL, 1774-1842. 



Period of Johannes Miiller. The period that marks the 

 beginning of modern physiology came next, and was due to 

 the genius and force of Johannes Miiller (1801-1858). Ver- 

 worn says of him: "He is one of those monumental fig- 

 ures that the history of every science brings forth but once. 



