THE SCIENCE OF LANGUAGE. 33 



to the variation of the species in the course 

 of time, through which — when it does not 

 reveal itself in all individuals in like manner 

 and to the same extent — one form grows into 

 several distinct other forms by a process of 

 continual repetition, that has been long and 

 generally recognised in its application to the 

 organisms of speech. Such languages as 

 we would call, in the terminology of the 

 botanist or zoologist, the species of a genus, 

 are for us the daughters of one stock- 

 language,* whence they proceeded by gra- 

 dual variation. Where we are sufficiently 

 familiar with any particular family of speech 

 we draw up a genealogical tablef similar to 



* I know no better word to render Grundsprache, since 

 the term primitive language is the one which I have reserved 

 for TJrsprache. — T. 



t Vide the one drawn up in the "Appendix" to Max 

 Mueller's first series of "Lectures on the Science of Language," 

 p. 411 in the fourth edition. — T. 



