CRANIO LOGY OF PEOPLE OF INDIA. 715 



minimum of 173, and the mean length of the series was 176*8 mm. In their parieto- 

 squamous breadth the maximum was 137 mm., the minimum was 129, and the mean 

 was 132*5 mm. The mean length-breadth index of the group was 75*0. Three skulls 

 had the index either 77*5 or 77 '4, which placed them in that division of the mesati- 

 eephalic group which approached closer to the dolichocephalic than the brachycephalic 

 standard. No skull was brachycephalic. Both in numerical proportion and in general 

 shape these Chin crania may be regarded either as distinctly dolichocephalic or as 

 approximating to that group. 



In basi-bregmatic height the crania ranged from a maximum 136 mm. to a minimum. 

 126, and the mean was 129*8 mm. The mean length-height (vertical) index was 73*4, 

 so that the skulls belong to the group with a moderate vertical index, which I have 

 named metriocephalic* In D and E the height slightly exceeded the breadth; in A 

 they were equal ; in the remaining three the breadth was more than the height. 



The mean Stephanie diameter, 106*6 mm., exceeded the mean asterionic diameter, 

 102 '8 mm., and the mean minimum frontal diameter was 90 mm. The bizygomatic 

 diameter, with a mean 127 mm., ranged from 117 to 139 mm., and invariably exceeded 

 the intermalar diameter. 



The occipital longitudinal arc in four skulls was less than either the frontal or parietal, 

 but in F it was greater than either of these, and in C it was greater than the . parietal. 

 In five crania the frontal arc exceeded the parietal, and in B the parietal was the 

 longer of the two. 



The nasio-mental length of the entire face ranged from 105 to 111 mm., with a mean 

 of 108 '5 mm. The complete facial index ranged from 78*4 to 89*9, and gave a mean of 

 85 '6, so that the skulls fall into the chamaeprosopic or low-faced group, not a single 

 specimen was leptoprosopic. As regards the maxillary facial index the range was from 

 47*6 to 53*8, and the mean was 50*4 ; they were therefore leptoprosopic in the propor- 

 tions of the upper face. 



In four of the six skulls the basi-nasal diameter exceeded the basi-alveolar. The 

 gnathic index ranged from 92*6 to 106*5, and the mean was 97*6 ; the majority were 

 orthognathous or mesognathous, though C was prognathous. 



The nasal index ranged from 46*9 to 54*3, and the mean of the series was 52*1, i.e., 

 mesorhine ; individually, however, A was leptorhine, C, D, and F were platyrhine, and 

 only two were mesorhine. The orbital index ranged from 78 to 97*2, and the mean 

 was 90*2 ; the orbits therefore were generally megaseme, B only being microseme. 

 The palato-maxillary index ranged from 109*6 to 133*3, and only one specimen was 

 below 115 ; the mean was 122*3, which placed the palate well into the brachyuranic group. 

 The cubic capacity of the cranium in the five men ranged from 1270 to 1375 c.c. ; 

 thus there was only a small range of variation amongst them, and the mean, 1315 c.c, 

 was distinctly microcephalic. The capacity of the skull in the specimen which I have 

 regarded as a woman was 1200 c.c. 



* CJiallencjer Reports, part xxix. p. 5, 1884. 



