98 PROCEEDINGS OF THE ANATOMICAL AND ANTHROPOLOGICAL 



Date of observation, November, 1905. 

 Sex, Male. 



Abnormal subscapular artery. 



The subscapular artery comes off the axillary artery higher up 

 than normally. It runs downwards and backwards and about an inch 

 from its origin it gives off a branch, the posterior circumflex artery, 

 which descends through the quadrangular space. About an inch 

 further on in its course it gives off the dorsalis scapulae, which de- 

 scends to the triangular space. The artery itself then proceeds to 

 di.stribute branches to the neighbouring muscles in the normal fashion. 



(Signature of observer) D. CRAIG. 



Date of observation, December, 1905. 

 Sexes, two Males and one Female. 



Abnormalities in branches of aorta. 



In three subjects a similar abnormality existed with regard to the 

 branches from the arch of the aorta. In all three the abnormality 

 consisted in the branches of the arch being two in number a large 

 innominate trunk, from which arose the right subclavian artery along 

 with the right and left common carotid arteries, and a left subclavian 

 artery. 



In No. 1 a male the left common carotid came from the 

 innominate just above the origin of the latter artery. The innom- 

 inate itself then passed vertically upwards in front of the trachea and 

 bifurcated at the level of the third cartilage of the trachea. 



In No. 2 a male the large innominate artery came oft' at the 

 right extremity of the arch, at the upper part of the ascending aorta. 

 This artery gave off the three branches above mentioned. 



In No. 3 a female the large innominate artery gave off three 

 branches as above mentioned, right subclavian, right and left common 

 carotid. 



(Signatures of observers) G. A. GRANT. 



D. M. SPRING. 

 J. G. MUTERER. 



