in IN EMBRYOLOGY 167 



when we see an elaborate apparatus 

 growing up through many rudimentary 

 stages to an accomplished end as the 

 relations of the same apparatus to the 

 chemical and vital processes which are 

 subordinate agencies in the result. But 

 it is a cardinal dogma of the mechanical 

 school that in Nature there is no mental 

 agency except our own ; or that, if there 

 be, it is to us as nothing, and any refer- 

 ence to it must be banished from what 

 they define as science. This is all the 

 stranger since the existence of rudiment- 

 ary organs, on the way to some pre- 

 destined end in various functional 

 activities, is the universal fact governing 

 the whole phenomena of embryology 

 in the course of ordinary generation. 

 Moreover, it is the very men who insist 

 on embryology as a confirmation of 

 their special theory, who object most 

 vehemently to its principles being con- 



