Quadrupeds. 8223 



rough prominences could be shown to be separable by maceration, we 

 might with good reason infer the rudimentary existence of a third 

 horn.' This fine male formerly belonged to the London Zoological 

 Society, and was bred in the Society's Gardens, Regent's Park. 

 I have noted the peculiar cause of its death in the paper already 

 referred to, in the paper, already referred to, in the Zoological Society's 

 'Proceedings' for 1860. 



" 5. After completing the article above mentioned, I visited the 

 Museum of the Royal College of Surgeons, Lincoln's Inn, and having, 

 through the ever-ready kindness of the late Prof Quekett, had an oppor- 

 tunity of inspecting the giraffine crania there preserved, I was in time 

 to append a foot-note to ' Ruminantia' to this effect: — 'The osseous 

 nodules noticed in the Dublin specimen not only exist in one of these 

 crania, but they could be partly raised from the subjacent bone by the 

 easy insertion of the finger-nail under the margin.' Since the year 1856 

 I have repeatedly examined these crania, and have no shadow of doubt 

 as to the existence of an ossified synchondrosis which has united the 

 third horn to the frontal eminence. 



"6. The distinctness between the third horn and the frontal emi- 

 nence was still more significant in the skull of an adult giraffe which 

 died at the Zoological Society's Gardens several years back ; but in 

 this case also there was union by synchondrosial ossification. T ex- 

 amined the cranium in 1857, before the skeleton was finally cleaned 

 and sent away, and have since been informed that it is preserved in 

 a museum at Bristol. 



" 7. The most cogent evidence, however, which I can adduce is that 

 derivable from the skull of a young male, whose entire skeleton may 

 now be seen set up and preserved in the Derby Museum at Liverpool. 

 This skeleton was formerly in the possession of Mr.Gerrard, the accom- 

 plished taxidermist at the British Museum, and I am indebted to his son 

 for the loan of a carefully executed drawing. In this instance, as I am 

 distinctly and unequivocally informed by several gentlemen connected 

 with the British Museum, who have examined the skull, the third horn 

 became readily detached by maceration ; it was for a considerable 

 time separately preserved, and presented all the ordinary characteristics 

 of the two posterior horns, of whose epiphysial character no one 

 entertains the slightest doubt. The third horn, or central pseudo- 

 ceratophorous epiphysis, has since been glued on to its original 

 position, and may now be seen m situ, as a standing proof of the cor- 

 rectness of RtippeH's original persuasion. 



" 8. In the Museum of the University of Tiibingen there is also 

 preserved a similar skeleton of a young male giraffe, in which — 



