Fip. 8 shows the spheno-maxillarv an^lp (B-Pr-P) of Xo. 1 skull compared 

 with that of a modern Canadian skull fbetween the dotted lines) which was 

 75°. The Fior. illustrates the effect which a reduction in the size £f this 

 angle has in producing the orthognathous tj^ie of cranium, 



Fig. 9. Profile view of the masks. (No 2 to the left, No. 1 to the right). 



