TEE SCIENCE OF LANGUAGE. 31 



— namely, the modern principle of observa- 

 tion. 



Let us now take up the origin of species, 

 and consider how far it is possible to con- 

 front the science of language with the views 

 represented by Darwin. 



It is necessary to observe beforehand, that 

 although the relationship in the specifica- 

 tion of human speech is, in the main, iden- 

 tical with that in the realm of nature, yet 

 the terminology of the glossologist is diffe- 

 rent from that of the naturalist. This I 

 must request you not to lose siglit of, for all 

 that will follow depends upon it. What the 

 naturalist terms a genus the glossologist 

 calls a family, and such genera as are more 

 closely related are often called the classes or 

 branches of a family. I by no means deny 

 that there is no more unanimity with regard 

 to determining a genus or a family among the 

 glossologists than among the zoologists and 



