PLATE X. 

 Cavk Hy.ena. 

 liumenis, Ulna, and Radius. 

 / (Natural size.) 



Fig. 



1. Right luimeriis,^ 



2. Right ulna, )- all anterior asjjeot. 



3. Right radius, J 



a. Head of humerus, 



b. Great tuberosity. 



c. Lesser tuberosity. 



d. Deltoid ridge. 



e. Supra-trochlear foramen. 

 /. Trodden. 



(/. External condyle. 



//. Internal condyle. 



/. Olecranon. 



j. Sigmoid notch. 



k. Surface for articulation with radius. 



/. Distal end of ulna. 



w. Surface for articulation with humerus. 



71. Distid end of radius. 



The three bones are all from the Skeleton B found at Wookey Hole, and now pre- 

 served in the Taunton Museum. 



