( Mx ) 



have touched upon, but I have already detained you too long : 

 in any case, however, I hope that I may have added something 

 to the evidence on the general subject, and that at any rate 

 I may in a slight degree have helped to prove that the ever- 

 increasing mass of known facts cannot be all due to accidental 

 circumstances : we may sometimes, in the enthusiasm of new 

 discoveries, see too much, prove too much, theorise too much, 

 but, when all allowance has been made, there is always a solid 

 residuum left, and we feel that we are resting on an ever- 

 increasing foundation of incontrovertible fact. 



