190 



EVOLUTION AND DISEASE. 



sometimes the lip is cleft on each side, the median piece 

 standing forward from the nose like a peninsula. An 

 inquiry into specimens of hare-lip occurring in mammals 

 generally, discloses the fact that in some the cleft may 

 be lateral, as in man, but in others it is median in 

 position. The following facts are interesting in this 

 direction : 



In the summer of 1886, whilst staying in Paris with 

 Mn H. W. Freeman, of Bath, we procured a pug-bitch 



FlG. 102. Cleft-lip and nose in a Dog. 



with a peculiar cleft in its nose. At first we thought 

 that the case was an example of hare-lip, but on making 

 inquiry we found it to be a distinguishing feature of 

 this breed of dogs and that it conferred upon them a 

 high money value. The bitch was brought to Bath, and 

 Mr. Freeman was successful in crossing her with a 

 Skye-terrier and obtained some pups. Half the litter 

 had normal noses like the dog, the remainder had 

 split noses and lips like the mother. The pups from 



