18 PROCEEDINGS OF THE ANATOMICAL AND ANTHROPOLOGICAL 



brachialis but gave a filament to this third head of the biceps. The 

 superior profunda artery gave off no anterior branch, but an unusually 

 long branch to the biceps took its place. 



(Signature of observers) A. J. WILLIAMSON. 



A. G. ANDERSON. 



Date of observation, November, 1904. 

 Sex, Female. 



Rectus sternalis muscle. 



There are two of these, taking their origin in the aponeurosis of 

 the pectoralis major over the seventh costal cartilage. The internal 

 one passes almost vertically up about inch from the median line to 

 the fourth costal cartilage, bending inwards to be inserted at the 

 junction between manubrium and gladiolus. It is mostly tendinous, 

 having only a small fleshy belly reaching from fourth to third costal 

 cartilages. 



The external one passes up and out to the junction of the third 

 cartilage with its rib, where it becomes attached to the pectoralis 

 major by fascia. It is a flat muscle about inch broad, and is ten- 

 dinous only at its origin, being fleshy from the fourth intercostal space 

 to its insertion. 



(Signature of observers) JAMES CONNER. 



ROBERT W. EDDIE. 



Date of observation, December, 1904. 

 Sex, Male. 



Abnormal course of the right phrenic nerve. 



After passing obliquely inwards across the anterior surface of the 

 scalenus anticus muscle to reach the anterior surface of the carotid 

 sheath, the nerve coursed downwards in front of the internal jugular 

 vein, and passed from the neck between the subclavian vein and the 

 clavicle. 



(Signature of observer) ALEX. HORN. 



