60 INTERMIXTURE OP CERTAIN RACES, ETC. 



importance of which I have endeavoured to point out. Until 

 we obtain further particulars we can only reason upon the 

 known facts ; but these, it must be admitted, are so numerous 

 and so authentic as to constitute if not a rigorous definitive de- 

 monstration, at least a strong presumption in favour of the 

 doctrines of polygenists. 



From the whole of our researches on the hybridity of the 

 human race we obtain the following results : 



1. That certain intermixtures are perfectly eugenesic. 



2. That other intermixtures are in their results notably in- 

 ferior to those of eugenesic hybridity. 



3. That Mulattoes of the first degree, issued from the union 

 of the Germanic (Anglo-Saxon) race with the African Negroes, 

 appear inferior in fecundity and longevity to individuals of the 

 pure races. 



4. That it is at least doubtful, whether these Mulattoes, in 

 their alliances between themselves, are capable of indefinitely 

 perpetuating their race, and that they are less prolific in their 

 direct alliances than in their re-crossing with the parent stocks, 

 as is observed in paragenesic hybridity. 



5. That alliances between the Germanic race (Anglo-Saxon) 

 with the Melanesian races (Australians and Tasmanians) are but 

 little prolific. 



G. That the Mulattoes sprung from such intercourse are 

 too rare to have enabled us to obtain exact particulars as to 

 their viability and fecundity. 



7. That several degrees of hybridity, which have been ob- 

 served in the cross-breeds of animals of different species, seem 

 also to occur in the various crossings of men of different races. 



8. That the lowest degree of human hybridity in which the 

 homceogenesis is so feeble as to render the fecundity of the 

 first crossing uncertain, is exhibited in the most disparate 

 crossings between one of the most elevated and the two lowest 

 races of humanity. 



