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 Miiller’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. 
