8io ROUGH WAYS MADE SMOOTH. 



Englishman of about fifty. As in the father's case, the in- 

 side of Fedor's nostrils and ears has a thick crop of hair.' 

 * Both father and son are almost toothless, Andrian having 

 only five teeth, one in the upper jaw and four in the lower, 

 while the child has only four teeth, all in the lower jaw. In 

 both cases the four lower teeth are all incisors. To the 

 right of Andrian's one upper tooth there still remains the 

 mark of another which has disappeared. That beyond these 

 six teeth the man never had any others is evident to anyone 

 who feels the gums with the finger/ 



The deficiency of teeth, accompanied as it is by what is 

 in reality a deficiency not a redundancy of hair for Andrian 

 and his son have no real hair accords well with Darwin's 

 view, that a constant correlation exists between hair and 

 teeth. He mentions as an illustration the deficiency of teeth 

 in hairless dogs. The tusks of the boar, again, are greatly 

 reduced under domestication, and the reduction is accom- 

 panied by a corresponding diminution of the bristles. He 

 mentions also the case of Julia Pastrana, a Spanish dancer 

 or opera singer, who had a thick masculine beard and a 

 hairy forehead, while her teeth were so redundant that her 

 mouth projected, and her face had a gorilla- like appearance. 

 It should rather be said that in general those creatures which 

 present an abnormal development in the covering of their 

 skin, whether in the way of redundancy or deficiency, pre- 

 sent, generally, perhaps always, an abnormal dental develop- 

 ment, as we see in sloths and armadilloes on the one hand, 

 which have the front teeth deficient, and in some branches 

 of the whale family on the other, in which the teeth are re- 

 dundant either in number or in size. In individual members 

 of the human family it certainly is not always the case that 

 the development of the hair and that of the teeth are 

 directly correlated ; for some who are bald when quite young 

 have excellent teeth, and some who have lost most of their 

 teeth while still on the right side of forty have excellent 

 hair to an advanced age. 1 



1 Shakspeare, who was bald young (and, so far as one can judge 



