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SCIENCE PROGRESS 



close a long, narrow, lingual space, so narrow that the 

 ascending rami have to undergo a wide lateral extension in 

 order to provide the intercondylar width necessary for the 

 articulation of the jaw with the cranium. In the human 

 jaw the teeth are arranged horse-shoe fashion, diverging rapidly 

 posteriorly, hence the ascending rami have a relatively smaller 

 lateral extension in regard to the toothrow. The fact, then, 

 that the Piltdown jaw in this regard agrees with the modern 

 human jaw suffices to show that in the arrangement of its 



Piltdown. 



Modern European. 



Chimpanzee. 

 61. 7. 29. 10. 

 Fig. 4. — Lines drawn along the molars, and through the ascending ramus, to show that in 

 the chimpanzee they converge in front of the canine, while in the human jaw they con- 

 verge at a variable distance behind the condyle. The human character of the Piltdown 

 jaw, judged by this test, is unmistakable. 



teeth, and in the form of the enclosed lingual space, it differed 

 as widely from that of the chimpanzee as does the man of to-day. 

 That the Piltdown jaw does present many points of striking 

 resemblance to that of a chimpanzee is beyond dispute. Dr. 

 Smith Woodward pointed out these resemblances long ago, 

 in his original description of the jaw. But Mr. Miller contends 

 that because of these resemblances therefore it is the jaw of a 

 chimpanzee. It will be obvious, to those who will take the 

 trouble to analyse the evidence wherewith he supports his 

 arguments, that he has endeavoured, throughout, to confirm 



