276 



ANTHROPOLOGICAL SURVEY IN ALASKA 



I ETH. ANN. 46 



Eskimo Skulls: Length-Breadth Index op the Upper Alveolar Arch 



both sexes taken together in ascending order 



Southwestern and midweslcrn 



Pilot Station, Lower Yukon. 



(5) 



79.4 



(8) 



Togiak and vicinity 80. 5 



(4) 



Chukchee.A 81. 1 



(12) 



Hooper Bav 81. 7 



(9) 



Muintrak 81. 7 



(9) 



Little Diomede Island 82. 2 



(234) 

 St. Lawrence Island 83. 



(10) 

 St. Michael Island 84. 3 



(22) 

 Pastolik 84. 4 



(90) 



Nunivak Island 84. 4 



(4) 

 Southwest Alaska 84. 7 



(5) 

 Cape Nome and Port Clarence. . 84. 9 



(22) 

 Indian Point (Siberia) 85. 



(22) 

 Nelson Island 85. 5 



North western 



(39) 

 Igloos north of Barrow 84. 1 



(14) 



Shishniaref 84. 4 



(171) 

 Point Hope 84. 6 



(31) 

 Wales 84. 9 



(38) 

 Barrow 85. 8 



(66) 

 Point Barrow 87. 1 



Northern and northeastern 



(9) 

 Smith Sound 82. 7 



(13) 

 Southampton Island r _ S3. 7 



(7) 

 Hudson Bav and vicinity 84. 4 



(23) 

 Baffin Land and vicinity 85. 7 



(89) 

 Greenland 85. 9 



(10) 

 Northern Arctic 86. S 



Sex differences in the index are small, nevertheless the females 

 tend to show a slightly higher index, due to relatively slightly 

 smaller breadth of the arch. 



The size of the arch and its index differ but little over the three 

 main areas of the Eskimo territory, yet there are slight differences. 

 They appear plainly in the following table. Notwithstanding the 

 fact that on the whole the southwestern and midwestern groups are 

 somewhat taller than those of the far north and northeast, the largest 

 palate, in the males at least, is found in the latter area. 



In the southwest and midwest the upper alveolar arch is rela- 

 tively (as well as absolutely, barring one group) somewhat broad and 

 short. This may be in correlation with the broader head in this 

 area, just as the absolutely slightly longer palates over the rest of the 

 Eskimo territory and particularly (in males) in the northeast may 

 correlate with the longer heads in those regions. This point may be 



