NEGATIVE EVIDENCE. 87 



Miiller has since corroborated Darwin's inter- 

 pretation, saying, " My own observations have 

 confirmed this view, as well as every detail of 

 the rest of Darwin's account." 1 The nega- 

 tive evidence was, by its very completeness, a 

 stumbling-block to Darwin's beliefs. As must 

 sooner or later be done with all instances of 

 negative evidence, he again set about replacing 

 it by positive evidence, which removed the 

 necessity of the belief which the negative evi- 

 dence destroyed. Until that was done the neg- 

 ative evidence increased rather than diminished 

 the mystery that needed solution. 



1 H. Miiller, Fertilization of Flowers, pp. 535-538. 



