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1871, p. 559. 
POLIAKOF, M. 
“ Supposed New Species of Horse from Central Asia.” ‘ Ann. Mag. Nat. Hist.’ Ser. 5 
Vol. VIII, No. 43, p. 16. [Equus prezewalkski]. 
Pomel, A. 
“ On the Occurrence of a Species of Hippotherium in Algeria.” f Bui. Soe. Geol.’ Vol. VI, 
p. 213. 
Ryder, J. A. 
“ Evolution and Homologies of the Incisors of the Horse.” ‘Proc. Acad. Phil.’ 1877, 
p. 152. 
Rutimeyer, L. 
“ Beitrage zur Kenntniss der fossilen Pferde, &c.,” ‘ Verhand, d. natfor, Gesel in Basle,’ 
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NOTE. 
For the American species the numerous memoirs of Messrs. E. D. Cope, J. Leidy,and 0. C. Marsh, in the publica- 
tions of the American Surveys, and in the “American Journal of Science and Art,” have been consulted, but are not 
quoted at length, as the species described do not approach the Indian forms. A recent memoir by Veterinary Surgeon 
Thomas, of the French Cavalry, entitled “ Eecherches sur Pquides fossiles des environs de Constantine,” 1 is not pro- 
curable in India, and may contain species not mentioned in my list. The second part of Professor Forsyth Major’s 
memoir only reached India while the above was passing through the press, and the new species therein mentioned is 
therefore, only incidentally referred to. 
1 ! Bul. Soc, d. Sci. phys. et Nat, d’ Alger,’ 1879. 
