194 BIOLOGY AND ITS MAKERS 



spoken of, we may associate with them the names of Sir 

 Michael Foster and Burdon-Sanderson, in England; and of 

 Briicke (one of Muller's disciples) and Verworn, in Ger- 

 many, as modern leaders whose investigations have pro- 

 moted advance, and whose clear exposition of the facts and 

 the theories of physiology have added much to the dignity 

 of the science. 



