We return to Las Casas once more, to state precisely his complicity in the introduction of the race whose sorrows have been so fearfully avenged by Nature in every part of the New World. Many of the writers who have treated of these transactions, as Robertson, for instance, have accused Las Casas, on the strength of a passage in Herrera, of having originated the idea that the blacks could be profitably substituted for the Indians. It is supposed, that, in his eagerness to save the Indians from destruction, he sought also to save colonial interests, by procuring still a supply of labor from a hardier and less interesting race. Thus his indignation at the rapid extinction of the Indians appears sentimental; to indulge his fancy for an amiable race, he was willing to subject another, with which he had no graceful associations, to the same liabilities. We have seen, however, that the practice of carrying negroes to Hayti was already established, seven years before Las Casas suggests his policy. The passage from Herrera has been misunderstood, as Llorente, Schoelcher, the Abbe Gregoire, and others, conclusively show. That historian says that Las Casa, disheartened by the difficulties which he met from the colonists and their political and ecclesiastical friends at home, had recourse to a new expedient, to solicit leave for the Spaniards to trade in negroes, "in order that their labor on the plantations and in the mines might render that of the natives less severe." This proposition, made in 1517, has been wrongly supposed to signalize the first introduction of blacks into America. Nor was Las Casas the first to make this proposition; for another passage of Herrera discloses that three priests of St. Jerome, who had been despatched to the colony by Cardinal Ximenes, for the experiment of managing it by a Board instead of by a Governor, recommended in 1516 that negroes should be sent out to stock the plantations, in order to diminish the forced labor of the natives. This was a concession by the Jeromites to the public opinion which Las Casas had created.[18] Negroes already existed there; the priests perceived their value, and that the introduction of a greater number would both improve the colony and diminish the anti-slavery agitation of the Dominicans. The next year this project was taken up by Las Casas, borrowed from the Jeromites as the only alternative to preserve a colony, to relieve the natives, and to keep the people interested in the wholesome reforms which he was continually urging upon the colonial administration.