SOCIETY OF THE UNIVERSITY OF ABERDEEN. 63 



Date of observation, 17th November, 1911. 

 Sex of subject, Male. 



Abnormal Origin of Spermatic Artery. 



In this subject the spermatic artery takes its origin from an accessory 

 renal branch of the aorta to left kidney, instead of springing, as it usually does, 

 from the aorta between the origins of the superior and inferior mesenteric 

 arteries. 



The accessory renal branch arises from the aorta about an inch below 

 the renal artery and runs obliquely upwards and outwards to enter the 

 kidney some distance below the hiluin. The spermatic artery arises from (his 

 accessory renal about f in. from its commencement, meets the spermatic vein 

 (proceeding to left renal vein), and runs down behind the iliac colon, crosses 

 the ureter obliquely, and lower part of left external iliac artery to reach the 

 internal abdominal ring, through which it passes, accompanying the other 

 constituents of the spermatic cord to the scrotum. 



(Signature of observer) GEORGE GORDON BRUCE. 



Date of observation, 30th November, 1911. 

 Sex of subject, Female. 



Side or region of subject, Right upper Extremity. 

 Number of subject, 3. 



Vas Abcrrans from Brachial Artery. 



In this subject the brachial artery presented certain abnormalities. About 

 an inch below the superior profunda, a long vessel (vas aberrans) comes off, 

 taking the place, to a great extent, of the inferior profunda, which is represented 

 merely by a very slender vessel, coming off slightly lower down. This " vas 

 aberrans " passes downwards along the outside of the basalic vein, sending off 

 muscular branches to the biceps, and to the scapular and internal heads of 

 the triceps. It crosses over the brachial artery and the median nerve about 

 2 inches above the elbow-joint, going under a slip from the tendon of the 

 pectoralis major ; then lies along the outer side of the brachial artery, passing 

 with it under the bicipital fascia. At the lower side of the semilunar fascia, 

 the two diverge: the vas aberrans lying to the inner side of the radial vein 

 passing over the pronator radii teres, and joining the radial artery to the outer 



