92 Darwin, and after Darwin. 



is exactly the same in man as it is in all the anthropoid 

 apes. Again, with regard to hair, Darwin notices that 

 occasionally there appears in man a few hairs in the 

 eyebrows much longer than the otiiers ; and that they 

 seem to be representative of similarly long and scattered 

 hairs which occur in the chimpanzee, macacus, and 

 baboons. 



Lastly, it may be here more conveniently observed 

 than in the next chapter on Embryology, that at 

 about the sixth month the human foetus is often 

 thickly coated with somewhat long dark hair over 

 the entire body, except the soles of the feet and 

 palms of the hands, which are likewise bare in all 

 quadrumanous animals. This covering, which is called 

 the lanugo, and sometimes extends even to the whole 

 forehead, ears, and face, is shed before birth. So that 

 it appears to be useless for any purpose other than 

 that of emphatically declaring man a child of the 

 monkey. 



(9) Teeth. — Darwin writes : — 



It appears as if the posterior molar or wisdom-teeth were 

 tending to become rudimentary in the more civihzed races of 

 man. These teeth are rather smaller than the other molars, as 

 is likewise the case with the corresponding teeth in the chim- 

 panzee and orang ; and they have only two separate fangs .... 

 They are also much more liable to vary, both in structure and in 

 the period of their development, than the other teeth. In the 

 Melanian races, on the other hand, the wisdom-teeth are usually 

 furnished with three separate fangs, and are usually sound [i.e. 

 not specially liable to decay] ; they also differ from the other 

 molars in size, less than in the Caucasian races. 



Now, in addition to these there are other respects 

 in which the dwindling condition of wisdom-teeth is 

 manifested — particularly with regard to the pattern cf 



