1897.] Anthropology. 737 
in large part, by the fact that even in fairly well preserved skeletons 
the scapula is extremely likely to be more or less damage 
With the view of testing some of the conclusions of Professor Dwight, 
chiefly for my own satisfaction, I made a hasty examination of the 
scapulee of the Northwest Coast Indians in the Field Columbian Museum, 
I was at once surprised at the apparently great individual variation in 
the general form of the bones, in the surfaces, borders, angles, etc. I 
then became curious to know if the indices would show a variation 
correspondingly great. In all I found twenty skeletons, the scapule of 
which were sufficiently well preserved to warrant an examination. Of 
these, thirteen were of the Kwakiutl race, seven being males and six 
females; and seven were Songish, four being males and three females. 
I have studied topically the following subjects: I. Glenoid cavity ; 
II. Borders and angles; III. Dimensions; IV. Indices; to which is 
added a general summary. 
I. GLENOID CAVITY. 
My interest in the glenoid cavity was confined to a sexual study of 
comparative size, and for this purpose two measurements were taken, 
the maximum length and the maximum width. I made no distinction 
of race in this study, and measured the cavity of the right bone only. 
In Table I are given the individual measurements of twenty specimens. 
TABLE [. 
| 
Males. Females. | 
Length Breadth Length Breadth 
41 mm 30 mm 35 mm 26 mm 
4 33 34 25 
28 25 
44 35 37 26 
30 35 25 
43 30 37 27 
3k 34 24 
29 34 26 
41 31 37 28 
40 
40 28 
The sharp line of demarkation between the two sexes is perhaps 
better shown in the following table, where the comparative distribution 
of the measurements can be seen at a glance: 
