478 



MR. OLD FIELD THOMAS ON THE 



Text-fig. 43. 



[Nov. 19 



Posterior part of the sku]l of an old male Five-horned Giraffe. Johnston 

 Collection. A section has been made of the nearer mizen horn, so as to 

 show the extent to which the cranial vacuities penetrate it. 



Text-fig. 44 



Post^ro-external view of the occipital region of a young G-iraffe, showing the 

 swelling which represents the mizen horn, 



