ee 
_ leads one to the conclusion that very remarkable scapulæ could — 
‘make more remarkable ones than actually occur. I shall now P, 
markable specimen, and is among those having the lowest in- 
dices. The scapular index is 56.5, and the infra-spinous 76.3. 
_ collection shows no such range. Even the scapula of the bear 
6 36 Variation of the Human Shoulder-Blade. [July 
The study of the range of variation in these separate parts : 
be constructed by a judicious selection and union of the most 
striking individual parts; but it would, I think, be difficult to — 
call attention to some of the most curious specimens. Figs. 4 — 
and 5 show respectively the lowest and the ‘highest indices. — 
The breadth is the same in each, but the.length of the latter is — 
little more than two-thirds of that of the former. The process ~ 
for the teres major, though small, is clearly shown on the scap- — 
ula of the mound-builder, but the other bone has a larger surface — 
for the origin of the muscle, though there is but a slight pro- — 
jection at the anterior edge, which is confirmatory of the views — 
expressed above. Figs. 6 and 7 have already been alluded to as _ 
widely different forms, having almost identical indices. Each is 
a peculiar bone, but the sharp one is the more uncommon. F igs. © 
8 and g are also in strong contrast to each other. The posterior — 
borders have been figured, but the striking effect is shown in the — 
figures of the whole bones. Each is very peculiar and in a dif- 
ferent way, though „neither has a remarkable index. Fig. 10 | 
represents a wonderfully long bone, being 20 cm. It is a re- | 
The original of Fig. 11 (scapula index 58.8 and infra-spinous — 
72.3) is figured. because it belonged to a negro and yet had in- 
dices far below the mean of Caucasian bones. A comparison — 
differs no more from that of the tiger than some of these from 
one another. A few notes on the anthropoid apes will be found 
in the appendix. 
What influence the height, the muscular development, the 
health, and the occupation of the individual may have on the 
ape of the scapula, and indeed on the skeleton in general, 
= The mate to this bone is the longest I have measured, exceeding it by more tl 
I mm,, but it has, unfortunately, been injuréd. 
