A. de Quatrefages,
The human species
(1879)
“ And yet M. d’Omalius, only counting the products of the crossing of the European White with the different coloured races, estimates the number of half-breeds at eighteen millions. The population of the globe being estimated as 1200 millions, the product of cross-unions is already represented by about 1/65th.We know, moreover, how irregular is the distribution of half-breeds. Immense tracts of country have not been affected. But where the peoples are in intimate contact, the proportion is much greater. In Mexico and South America half-breeds constitute at least one-fifth of the population. ”
