SOCIETY OF THE UNIVERSITY OF ABERDEEN. 57 



the median nerve lies external to the single trunk, but below the division it 

 passes below the external trunk and lies between the two branches. Below 

 the elbow the arteries pursue their normal course. 



(Signature of observer) GAVIN E. ARGO. 



Date of observation, November 23rd, 1908. 



Sex of subject, Male. 



Side or region of subject, Upper Extremity. 



Abnormal Muscle in left Forearm. 



This muscle arises by a slender tendinous origin which blends with the 

 tendinous insertion of the prouator radii teres. The tendon pierces the part 

 of the flexor sublimis digitorum which rises from the oblique line of the 

 radius. It terminates in a fleshy belly about three inches long, which is 

 inserted into the outer side of the anterior annular ligament by a flat 

 tendinous expansion about half an inch broad. 



Relations. At its insertion it lies between the tendons of the flexor carpi 

 radialis and palmaris longus muscle, having the radial artery to the outside 

 and the median nerve to the inside. Beneath it is the flexor longus pollicis. 

 Above it lies behind the flexor carpi radialis and pierces the flexor sublimis 

 digitorum to blend with the tendon of the pronator radii teres. This muscle 

 was not present in the other arm. 



The Extensor Indicia muscle in this arm is also peculiar in that it sends 

 a tendinous slip to the middle finger, besides the usual tendon to the index 

 finger. This slip arises from above the annular ligament. 



(Signature of observer) IAN G. BISSET. 



Date of observation, 23rd December, 1908. 



Sex of subject, Male. 



Side or region of subject, Right. 



A Secondary Astrayalus. 



On removing the fat from the space between the front of the tendo 

 achilles and the back of the astragalus a small nodule of bone resembling a 

 sesamoid bone was seen. This, on closer examination, proved to be the 

 tubercule which is situated on the postero inferior edge of the body of the 



