INTRODUCTION. 63 



Tartar horse, any more than a negro can be recon\ertcd into his 

 lighter original stock. 



He thinks the theory of the creation of the same species of ani- 

 mals and man in different localities open to the following objections : 

 it supposes a multiplication of miracles, to produce an effect which 

 might have been produced by second causes, viz., an organization 

 capable of producing varieties suited to every climate, and ample 

 means of migration. It confounds all the rules by which naturalists 

 are governed in the determination of species. The creation of a 

 species in one locality, and the creation of the same species as a 

 very distinct variety in another locality, is very nearly equivalent to 

 the creation of these as different species. The same species of 

 animal, as far as he knows, is not created in separate localities, as 

 regards mammals and birds. Apparent exceptions in the lower 

 animals and plants may be satisfactorily accounted for in another 

 manner. The animals of the Eastern Continent are all of different 

 species from those of America, with the exception of the Arctic 

 animals, which can easily migrate to the temperate latitudes of cither 

 continent. The eggs of fishes, crabs, and other lower animals, very 

 tenacious of life, are the food of many birds of powerful flight, and 

 may be voided from their bodies at considerable distances while they 

 yet contain the principle of life. Seeds are also conveyed to im- 

 mense distances by various animals, pass through their bodies, and 

 spring up. This may account tor the apparent existence of the 

 same species, in^he few cases where it has been observed, in local- 

 ities remote from each other. Geological changes of the earth's 

 surface should also be considered in this connection. Currents of 

 water and winds also scatter seeds to great distances from their orig- 

 inal source. A last objection is the nature of man's organization, 

 endowed with a constitutional power to become naturalized in every 

 climate. 



He coincides with Dr. Pickering in referring the American In- 

 dians to the Mongolian race, and the inhabitants of California, &c, 

 to the Malay, though he arrived at this conclusion before he knew 

 Dr. Pickering's views. 



Dh. Mortox* divides the American race into two families, one of 

 which, the Toltccaii, bears evidence of centuries of civilization, 



* Crania Americana, by Samuel George Morton. M. D. Philadel- 

 phia, 1839. 



