CRANIOLOGY OF PEOPLE OP INDIA. 719 



end of the nasio-tentorial diameter with the nasio-bregmatic chord of the frontal, i.e. 

 the hregma-nasio-tentorial angle. This angle ranged from 57° in a Bhil to 74° in the 

 Kol, and the mean of the series was 63'1°, a fraction greater than the bregma angle; 

 though a comparison of the two angles will show that in one-half the number of skulls 

 the bregma angle was a little more than the bregma-nasio-tentorial, in two specimens 

 they were equal, and in five the latter was somewhat the greater. In the Tasmanian 

 skulls previously recorded the mean bregma-nasio-tentorial angle was 55*5°, and in 

 the Australians it was 5 8 "4°. In the Dravidians, therefore, this angle, though in the 

 mean more open than in those two races, yet, as regards individual skulls, it was 

 sometimes greater, at others less, and in one skull it was equal to the bregma angle. 



FRONTIER TRIBES OF BURMA. 



I am indebted to Colonel G. J. H. Bell, Inspector-General of Prisons, who, at the 

 request of Surgeon-General Sinclair, forwarded to me in the summer of 1910, for the 

 Anatomical Museum, thirteen skulls collected by medical officers living on the frontiers 

 of Burma. Burma is divided administratively * into [a] Northern or Upper Burma, 

 which includes the Chindwins and the Chin and Kachin Hills ; (6) Burma proper or 

 Lower Burma, practically the valley of the Irawaddy to the south of the gorge ; (c) the 

 Shan Tributary States, subdivided into the Northern and Southern States. The 

 Northern States are for the most part south of Bhamo and west of the Salween River, 

 between it and Mandalay, though they also include those Wa States which are to the 

 east of that river. The Southern Shan States are partly to the west of the Salween, 

 but cross it eastward as far as the Mehong River ; China forms their eastern boundary, 

 and Siam and Kareni lie to the south. 



Pakokku District. 



Pakokku is an extensive district in Upper Burma, bounded on the west by the 

 Chin Hills, on the north by the upper and lower Chindwin districts, on the east by 

 the Chindwin River where it joins the Irawaddy, on the south by the Mimbu area 

 situated on the west bank of the Irawaddy and by the Myingyan area on its east bank. 

 I owe to Captain H. J. Augustine, I. M.S., Civil Surgeon in Pakokku, one group of 

 skulls, eight in number, which were collected by the subdivisional officer at Gangaw, 

 in the north-western part of the district. Two skulls were marked Chinbok, two 

 Taungtha, and four Yaw. 



Chinboks. Table VI. (Plates XII., XIII.) 



The Chin Hills are situated to the west of the Chindwins and Pakokku, and are 

 occupied by tribes known generally as the Chins. They have already been referred to 

 and their skulls described in Part I. of these memoirs on the Craniology of the people 



* Upper Burma and Shan States Gazetteer, vol. i. part i., p. 3, Rangoon, 1900. 



