20 
ROSS G. HARRISON 
upper arm runs dorso-anteriorly and laterally. The elbow bend 
is somewhat less than 90° and the fore arm and hand extend antero- 
ventralh' and laterally. The extensor surface of the elbow- joint 
faces dorsally and slightly anteriorly and medially. The palm 
of the hand faces medially, anterior^, and slightly ventrally. 
Fig. 19 Heterotopic transplantation {hom.dv.), Exp. Tr. E. 140; drawn from 
specimen 'preserved twenty-eight days after operation. TR, transplanted limb. 
X 10.5 
The other case^* has its upper arm transverse and horizontal, and 
its fore arm extends ventroposteriorly at an angle of less than 
45° to the horizontal axis (fig. 19). The palm looks ventrally 
and anteriorly. In order to bring this limb into the position of 
the former, it would have to be rotated about the axis of the 
humerus 45° or more and then adducted dorsoanteriorly at the 
shoulder- joint through about 30°. The difference in position 
assumed by the limbs in the various cases is thus due to differ- 
» Tr. E. 140. 
