Frederic T. Lewis i ba lg 
be designated brachial or basilic, so in the leg there is the choice between 
femoral and large saphenous vein. Both of the latter spring from the 
vessel which we have called femoral. The close relation between the two 
is shown by Krause’s description of the veins in the adult rabbit, where the 
posterior tibial is considered to be the distal continuation of the large 
saphenous vein. It seems probable also, that the anteror tibial vein, 
which is quite superficial at 20 days, though it accompanies the artery, 
should give rise to the small saphenous vein, with which it anastomoses 
in the adult. Hochstetter, as already noted, assigns a somewhat different 
origin to the small saphenous vein. 
The condition found in the rabbit at 20 days, is essentially that of the 
adult. The sciatic vein remains a large vessel. In man, assuming that 
the embryological history is similar to that of the rabbit, the proximal 
section of the sciatic vein dwindles after the formation of the femoral 
anastomosis near the knee. ‘The sciatic vein is represented, therefore, 
merely by the collateral circulation of the thigh, as figured by Charpy 
(Poirier’s Anatomie, Vol. 2, p. 1052), and by Spalteholz (Handatlas, 
Vol. 2, p. 469). 
The preceding observations seem to establish three stages in the venous 
development of the leg, comparable with those in the arm. 
1st. The stage of the primitive fibular vein. 
2d. ree Ce eS SSClahle Vell: 
3d. << “«  “« “ femoral vein, the sciatic vein persisting (in 
man, very much reduced). 
HOMOLOGIES BETWEEN THE VEINS OF THE ANTERIOR AND POSTERIOR 
EXTREMITIES. 
Bardeleben’s view that the primary vein of the arm consisted of the 
vena cephalica antibrachii, vena mediana cubiti, and vena basilica brachii, 
and that this was homologous with the vena saphena magna of the leg 
was rightfully criticized and condemned by Hochstetter. Nevertheless it 
is referred to somewhat favorably by Charpy. 
Krause finds that the cephalic and sciatic veins are analogous (p. 210). 
Hochstetter denies this, and arrives at the following conclusions. Since 
the ulnar and fibular borders of the limbs are homologous, the primitive 
veins which follow them are also homologous. The small saphenous vein 
and the basilic vein of the forearm, being presumably persistent portions 
of the primitive veins, are therefore homologous. The cephalic and large 
saphenous veins are secondary formations, and any comparison between 
