MAN AND APES. 151 



a pinion, a bend in a tooth of the escapement, 

 a something so slight that only the practised 

 eye of the watchmaker can discover it, may 

 be the source of all the difference." 



It would be, however, to say the least, 

 somewhat singular to attribute to hypotheti- 

 cal and confessedly minute differences, effects 

 which as yet we have not seen to accompany 

 or be produced by certainly present and con- 

 fessedly considerable differences which we have 

 seen. 



With how much force then does not the 

 comparative anatomy of the present day re- 

 echo the truth long ago proclaimed by 

 Buffon,f that material structure and physical 

 forces can never alone account for the presence 

 of mind. 



Speaking of the ape, the most man-like as 

 to brain, he says : — 



" II ne pense pas : y a-t-il une preuve plus 

 evidente que la matiere seule, quoique par- 

 faitement organised, ne peut produire ni la 

 * i Hist. Nat.,' t. xiv. p. 61, 1766. 



