362 



Annals of the Carnegie Museum. 



Distally the transverse diameter of the humerus is about double the 

 fore and aft. The articular surface is exceedingly rugose and deeply 

 pitted as though covered in life with heavy cartilaginous epiphyses 



Fig. 2. Posterior view of right humerus, about one -tenth natural size. ( No. 56^ 



which never became thoroughly ossified and through the intermedium 

 of which it articulated with the radius and ulna. On the posterior 

 border there is an emargination indicative of an anconeal fossa. This 

 is extended into the articular area in such manner as to cause a slight 

 median constriction on the posterior side directly opposite a slight 

 anterior expansion on the anterior surface. There is a small and 



