28 PROFESSOR OWEN ON THE OSTEOLOGY OF 



Fig. 14. Os cuneiforme of a Man. 



Fig. 1 5. Os trapezoides of a Gorilla. 



Fig. 16. Os trapezoides of a Man. 



Fig 17. Metacarpal surface of the os magnum of a Gorilla. 



Fig. 18. Radial side of the os magnum of a Gorilla. 



Fig. 19. Metacarpal surface of the os magnum of a Man. 



Fig. 20. Radial side of the os magnum of a Man. 



Fig. 21. Os unciforme of a Gorilla. 



Fig. 22. Os unciforme of a Man. 



(The OS trapezium was wanting in the series of carpal bones of the adult Gorilla's 

 skeleton which first reached me, in 18.51, when the above Plate was drawn ; that bone 

 is represented in the wrist of the older male Gorilla, PI. X. t.) 



PLATE HI. 



Fig. 1. Right humerus of an adult but young male Troglodytes Gorilla. 



Fig. 2. The head of the same bone. 



Fig. 3. The back part of the condyles, with the perforated anconeal fossa ; of the same 



bone. 

 Fig. 4. The distal articular end of the same bone. 

 Fig. 5. Right humerus of an adult male Troglodytes niger. 

 Fig. 6. The head of the same bone. 

 Fig. 7. The back part of the condyles of the same bone. 

 Fig. 8. Right humerus of an adult male Australian. 

 Fig. 9. The head of the same bone. 



Fig. 10. The back view of the condyles of the same bone. 

 Fig. 11. The front view of the distal end ofthe right humerus of an adult male European. 



PLATE IV. 



Fig. 1. The right radius, wanting the distal epiphysis, of an adult but young male 



Troglodytes Gorilla. 

 Fig. 2. The articular head of the same bone. 

 Fig. .3. The right radius of an adult male Troglodytes niger. 

 Fig. 4. The articular head of the same bone. 

 Fig. 5. The back part of the distal end of the same bone. 

 Fig. 6. The articular surface of the same end. 

 Fig. 7. The right radius of an adult male Australian. 

 Fig. 8. The articular head of the same bone. 

 Fig. 9. The back part of the distal end of the same bone. 



