SOCIETY OP THE UNIVERSITY OF ABERDEEN. 77 



companying the artery are two veins, one on each side, which remain 

 separate throughout. 



(Signature of observer) CHARLES CLYNE. 



Date of observation, December, 1907. 

 Sex, Male. 



Abnormal course of median nerve (left). 



The nerve runs as usual along the outer side of the brachial artery 

 but instead of crossing in front of the artery at the middle of its 

 course, it crosses behind the artery just where it divides into radial 

 and ulnar. From this point the course of the nerve is quite normal. 



(Signature of observer) WM. C. MILNE. 



Date of observation, December, 1907. 

 Sex, Male. 



Abnormal arrangement of branches of brachial artery (left). 

 The anastomotica magna instead of arising from the brachial two 

 inches above the elbow-joint arises at least four inches and at the same 

 place from which the inferior profunda also takes origin. The anasto- 

 motica gives off muscular branches to the biceps and brachialis anticus 

 and divides just above the external condyle into two branches, the 

 outer of which anastomoses with the radial recurrent and the inner 

 supplies the front of elbow-joint. 



(Signature of observer) WM. C. MILNE. 



Date of observation, November, 1907. 

 Sex, Male. 



Axillary arch (right). 



On opening the axillary cavity a muscular axillary arch is seen 

 crossing superficial to the sheath containing the brachial artery and 

 the branches of the brachial pleuxus. This slip consists of fine fibres, 

 and has a muscular origin from the anterior surface of the tendon of 

 the latissimus dorsi muscle, and is inserted by a few tendinous fibres 

 into the aponeurosis covering the upper- part of the coraco-brachialis. 



