THE GENESIS OF SPECIES. 



A review in ' Nature,' by Mr. A. W. Bennett, of 

 Mr. Mivart's ' Genesis of Species,' contains the follow- 

 ing passage : 



'It behoves, therefore, every Darwinian to satisfy 

 himself that either Mr. Mivart's premisses or his line 

 of argument is unsound. 



' The objections brought forward by the author 

 are summed up as follows : (i) That Natural Selection 

 is incompetent to account for the incipient stages of 

 useful structures. (2) That it does not harmonize 

 with the co-existence of closely similar structures of 

 diverse origin. (3) That there are grounds for think- 

 ing that specific differences may be developed sud- 

 denly instead of gradually. (4) That the opinion that 

 species have definite though different limits to their 

 variability is still tenable. (5) That certain fossil 

 transitional forms are absent which might have been 

 expected to be present. (6) That some facts of geo- 

 logical distribution supplement other difficulties. (7) 

 That the objection drawn from the physiological differ- 

 ence between " species" and "races" still exists unre- 

 futed. (8) That there are many remarkable phenomena 

 in organic forms upon which Natural Selection throws 



