EXTINCT ANIMALS 



the workmen came upon this rhinoceros skull. 

 Many such have been found in EngUsh river 



Fio. 5. — Photographs of two skulls of Rhinoceroses in the 

 Natural History Museum. The upper one was dug out 

 of the Thames clay in Whitefriars, London, and is that 

 .of the species known as Rhinoceros antiquitatis. The 

 lower one is that of the living African square-mouthed 

 Rhinoceros {R. sinius)^ which is more like the fossil one 

 than is any other living rhinoceros. 



gravels, and we know accordingly that such 

 animals used to exist on the banks of the 



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