THE HUMAN SPECIES. 175 



to supply tl e deficiency.* The force of a true Negro expan- 

 sion is felt coming from the centre of Africa. It presses upon 

 the Caffres, the Abyssinees, and the west coast of Nigritia. 

 Morocco is already ruled by black sovereigns ; and the antique 

 semi-Caucasian tribes of the north part have greatly dimin- 

 ished. 



As it is with individual life, so families, tribes, and nations, 

 most likely even races, pass away. In debatable regions, their 

 tenure is only provisional, until the typical form appears, when 

 they are extinguished, or found to abandon all open territories 

 not positively assigned them by nature, to make room for those 

 to whom they are genial. This effect is itself a criterion of an 

 abnormal origin ; for a parent stock, a typical form of the pres- 

 ent genus or species, perhaps with the sole exception of the 

 now extinct Flathcads, is, we believe, indestructible and inef- 

 faceable. No change of food or circumstances can sweep 

 away the tropical woolly-haired man; no event, short of a gen- 

 eral cataclysis, can transfer his centre of existence to another ; 

 nor can any known cause dislodge the beardless type from the 

 primeval high north-eastern region of Asia and its icy shores. 

 The white or bearded form, particularly that section which has 

 little or no admixture, and is therefore quite fair, can only live, 

 not thrive, in the two extremes of temperature. It exists in 

 them solely as a master race, and must be maintained therein 

 by foreign influences; and the intermediate regions, as we have 

 seen, were in part yielded to the Mongolic on one side, and but 

 temporarily obtained, by extermination, from the woolly-haired 

 on the other. 



SPECIES OR TYPICAL FORMS OF MAN. 



Whether we take the three typical forms in the light of 

 distinct species, or view them simply as varieties of one aborig- 



* The same result is asserted to be observed on the banks of the Ganges ; 

 though, in the South Sea Islands and Australia, the bearded stock multi- 

 ples in itsell, and with semi-Caucasian Malay races. 



