44 Tiio:\jAs J) WIGHT ox 



nervL'. The two [(rcsiiiiiiibly represent the superior profuuda. Later a small branch 

 runs to the under side of the biceps, ami a few su[)ply the elbow joint. The division 

 into radial and idnar occurs about one inch below the elbow joint. The whole arrange- 

 ment is as in man (very different from T. auhrtj't) ; the radial descends in the usual way 

 to the tabatiere, and then passes into the depth of the palm. The ulnar, which is the 

 larger branch, passes under the pronator teres, the deep head of which separates it from 

 the median nerve. Its distribution in the hand is essentially human. An interosseous 

 artery was given off which was subsequently lost. 



With the exception above mentioned this in essentials corresponds to other 

 chimpanzees. 



The femoral artery about one inch below Poupart's ligament gives oft" a small 

 external branch, probably the external circumtlexa, ilii, and, a little lower, a small one 

 running internally. At about the same level the profunda arises from its deep aspect. 

 From this .springs an external circumflex which divides into ascending and de.scending 

 branches and a small lateral one. The descending runs on the vastus externus to the 

 outside of the knee. The profunda runs probably ' through the thick ma.ss of adductor 

 muscles, sending back perforating branches. 



The femoral runs anteriorly to the adductor mass to the inside of the lower third of 

 the thigh, where beneath the sartorius and the anterior border of the gi'acilis it divides 

 into the popliteal and the saphenous. The popliteal, which is rather the larger of the 

 two, passes back external to the muscle representing the vertical part of the adductor 

 magnus. Be.sides articular branches it a-ives one lono- sural branch and divides into the 

 anterior and posterior tibials. The former passes forward at once as in man and descend- 

 ing to the ankle ends in a network over the metatarsal bones. The posterior tibial 

 gives off a peroneal branch, neither of which was fully traced. 



The saphenous artery gives a considerable branch to the inner side of the knee joint 

 and passing between the sartorius and gracilis comes to the surface opposite the inner 

 tuberosity of the tibia. It then runs down along the inner side of the leg in company 

 with a vein beneath the fascia. It crosses above the internal malleolus to the front of 

 the foot and plunges into the sole between the leases of the first and second metatarsal 

 bones. 



Gratiolet and Alix describe the arteries of the lower leg practically as here. They 

 say, however, of the saphenous artery that " Elle se place superficiellement sous la peau, 

 le long de la face interne dn tibia, etc.," while I find it beneath the fascia. Zucker- 

 kandl" does not touch on this point. My observations, though less minute, agree with 

 his, only that he finds the peroneal springing from the anterior tibial. 



' I regret that my notes on tlii.spuiiit are not jierfeotly clear. - Auat. liefte, la, 18y0. 



