1893.] The Genealogy of Man. 335 
even more simian than that seen in Australian and Maori denti- 
tions in my collection. The last molar of the male is stated 
to have similar structure, but the roots cannot be clearly seen in 
the plaster cast. These two characters then place the man of 
Spy i in the lowest category, just as would be naturally expected 
in the presence of the other simian characters already referred 
to. The dentition is inferior to that of the neolithic man of 
France,” where the last molar at least is tritubercular. 
Some other peculiarities of these dental series may be now 
referred to. In the female dentition, where alone the canine 
alveoli remain, the size of the latter tooth and that of the 
premolar is large, relatively, to that of the true molars. The 
canine is not remarkably large, but exceeded by a little, that 
commonly seen in Polynesians and Australians, where it is 
largest among human races. The premolars exceed a little 
the proportions seen in the same races, approximating but not 
quite equaling the relative dimensions seen in the chimpanzee. 
The roots are relatively more robust in the transverse direction 
than in human dentitions generally. The first and second 
molars of the female are of equal transverse diameters, while 
the third is a little wider transversely and quite as wide 
anteroposteriorly. This large dimension for the third molar 
exceeds anything I have observed in human dentitions except 
in the case of a single Australian in my collection, surpassing 
a little that of the chimpanzee, and reminding one of some of 
the gibbons (Hylobates), where, however, the crown is subcir- 
cular in outline. In the male the transverse diameter of the 
third molar is a little smaller than that of the other molars, 
but the tooth is larger than is usual in man, and equals in its 
dimensions that of the chimpanzee. 
A peculiarity which is pronounced in the male, and observ- 
able in the first molar only of the female, is the prolonged pos- 
terior convexity of the grinding surface. This is unlike any- 
ng I have seen in human molars, and resembles the char- 
acter of the orang" more than that of any other quadrumane 
known to me. This appearance is increased by a contrac- 
“1 Cope loc. ĉit., p. 17. 
‘N Owen Odontography, p. 444. 
