14 A CRANIOMETRIC STUDY 



thus placing it in the phaenozygous group. It was, however, 

 not nearly as phaenozygous as the two Melanesian skulls 

 recently described by the writer, where the figures were 73 

 and 71, and represented the lowest ebb for this index. The 

 average stephano-zygomatic index for the European male is 

 just over 900, so that this Micmac skull, so far as this index 

 was concerned, occupied a remarkably intermediate position 

 between the highest and the lowest types of modern Hominidae. 



The Orbital Index. — This is admittedly a rather variable 

 cranial index, but it exhibits some consistent features. For 

 example, it is persistently high in all the Mongoloid races. 

 It is therefore not surprising to find that this Micmac skull, 

 whose cranial indices have been already shown to possess 

 some close Mongolian affinities, should exhibit an orbital 

 index of 88.04, thus placing it at the highest limit of the me- 

 sosemic group. In order to lend further emphasis to this point 

 it is of value to contrast the above figure with 80 and 81 which 

 were the orbital indices recently recorded by the writer in 

 two Melanesian skulls^*). In the memoir dealing with these 

 and also in another paper*') I discussed the influence which the 

 degree of development of the frontal and maxillary air sinuses 

 exerts upon the orbital contour, so that it will not be necessary 

 to dilate further upon this topic. It is however, important to 

 point out that the height of the orbital aperture is greater in 

 all the Mongoloid races than in the European, and this fact 

 of course accounts for the high degree of index yielded by these. 

 It is therefore strange that as regards this index the European 

 skull occupies a position intermediate between the Mongoloid 

 and the lowest races of modern Hominidae. 



The Maxillo-Facial Index. Broad headed races are also 

 broad faced as a rule, tliough this is by no means infallible. 

 The index in this skull proved to be 47.03, so that it followed 

 the above rule consistently and was brachyfacial or chamae- 



