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The fossil remains of horses have been very seldom mentioned by au- 

 thors. The fossil teeth of a horse are given by Bernia, in his edition of 

 Aldrovandus on Monsters, as the teeth of giants ; and Lang, Hist. Lap. 

 Fig. Helv. Tab. xi. Fig. 1, 2, figures the tooth of a horse as the tooth of 

 the hippopotamus. Kundmann has also engraved the teeth of a horse, 

 without knowing to. what animal they belonged ; and Walch, having re- 

 ceived some from Quedlimbourg, only observes, that they were similar to 

 those which had been figured by Lang and Kundmann. Hence, Cuvier 

 observes, that these having been so little noticed by former writers, is at- 

 tributable partly to their not having excited their attention sufficiently, 

 and partly to their ignorance respecting their origin. 



A species of horse appears to have been the associate of elephants in 

 former periods ; but M. Cuvier is unable, from single bones and mutilated 

 fragments, to determine in what points it nearest resembled the species 

 of the present day. 



As the fossil teeth of the horse are most likely to be confounded with 

 those of the ox or buffalo, I shall place before you the following distin- 

 guishing characters. 



The upper grinders of the horse agree with those of the ox and buffalo 

 in their prismatic form, and are marked, like them, with four crescents; 

 but they have also a fifth on their inner edge. 



The lower grinders are more compressed, and have four crescents, the 

 same as in the ox ; but, instead of being disposed two and two, parallel, 

 they are placed alternately, the first of the inner edge corresponding with 

 the interval on the outer edge. 



The largest fossil tooth of this animal which I have obtained, is one 

 which was found by Mr. D. Ward, at Great Wigston, near Leicester. 

 The size of these teeth we however know may depend on circumstances 

 not affected by the difference of species. Thus, if any of the teeth of one 

 jaw are removed, the opposite teeth, in the other jaw, will grow to a very 

 considerable length. 



