Concerning Bolivia, Professor Ross writes: "The wisest sociologist in Bolivia told me that the zambo, resulting from the union of Indian with negro, is inferior to both the parent races, and that likewise the mestizo is inferior to both white and Indian in physical strength, resistance to disease, longevity, and brains. The failure of the South American republics has been due, he declares, to mestizo domination. Through the colonial period there was a flow of Spaniards to the colonies, and all the offices down to _corregidor_ and _cura_ were filled by white men. With independence, the whites ceased coming, and the lower offices of state and church were filled with mestizos. Then, too, the first crossing of white with Indian gave a better result than the union between mestizos, so that the stock has undergone progressive degeneration. The only thing, then, that can make these countries progress is a large white immigration, something much talked about by statesmen in all these countries, but which has never materialized."[70] These judgments refer particularly to Spanish America. Regarding Portuguese Brazil, however, the verdict seems to be the same. Many years ago Professor Agassiz wrote: "Let any one who doubts the evil of this mixture of races, and is inclined from mistaken philanthropy to break down all barriers between them, come to Brazil. He cannot deny the deterioration consequent upon the amalgamation of races, more wide-spread here than in any country in the world, and which is rapidly effacing the best qualities of the white man, the negro, and the Indian, leaving a mongrel, nondescript type, deficient in physical and mental energy."[71] The mongrel's political ascendancy produces precisely the results which might have been expected. These unhappy beings, every cell of whose bodies is a battle-ground of jarring heredities, express their souls in acts of hectic violence and aimless instability. The normal state of tropical America is anarchy, restrained only by domestic tyrants or foreign masters. Garcia-Calderon exactly describes its psychology when he writes: "Precocious, sensual, impressionable, the Americans of these vast territories devote their energies to local politics. Industry, commerce, and agriculture are in a state of decay, and the unruly imagination of the Creole expends itself in constitutions, programmes, and lyrical discourses; in these regions anarchy is sovereign mistress."[72] The tropical republics display, indeed, a tendency toward "atomic disintegration.... Given to dreaming, they are led by presidents suffering from neurosis."[73]