132 NATURAL HISTORY OF 



Caucasian expression of beauty from a first intermixture, 

 and very often both stature and form exceeding either 

 type ; and, in the second generation, the eyes of Mon- 

 goles become horizontal, the face oval. The crania of 

 the Negro stock immediately expand in their hybrid 

 offspring, and leave more durable impressions than 

 when the order is reversed. Even from the moment 

 either typical stock is itself in a position to be intel- 

 lectually excited by education, it is progressive in 

 development in succeeding generations. Here, then, 

 at the point of most intense innervation, the spark of 

 indefinite progress is alone excited, and communicated 

 in power, precisely according to the quantity received. 

 For the rest, gestation, puberty, and duration of life, 

 exclusive of accidental causes, are the same; and in 

 topographical location, though each is possessed of a 

 centre of vitality, yet all have races and tribes scattered 

 in certain directions through each other, and to vast 

 distances, at the very first dawn of historical investiga- 

 tion. This may be the cause why all nations acknow- 

 ledge a great deluge, although they do not foresee a 

 second ; but almost as universally expect a conflagra- 

 tion. It is, however, true, that the obvious inference 

 to be drawn from the foregoing remarks, does not 

 amount to a demonstration, that mankind sprung from 

 a single pair, or is of one species only, since there are 

 numerous proofs, notwithstanding a permanent diver- 

 gence, of the three types having been constantly in 

 sufficient contact to learn great general traditions ; and 

 the diluvian fact itself was of such magnitude, that it 



