HOOTS OF LANGUAGE. 293 



and the idea thereby expressed, or whether they were all 

 due to arbitrary invention, in either case the evolutionist may 

 see that they can equally well have come into existence as 

 the natural products of a natural psychogenesis. And, 

 a fortiori, as an evolutionist, he need not greatly concern 

 himself with any further question as to the relative degrees in 

 which imitation and invention may have entered into the 

 composition of primitive speech. 



