From this sketch of the Portuguese Inquisition, we can readily estimate its efficiency in keeping the Spanish institution supplied with material as the native stock grew Christianized. Not the least unfortunate effect of this was its influence in maintaining the prejudice that might otherwise have subsided, and that consequently became one of race as much as of religion. The venom which we have seen in the work of da Costa Mattos was, if possible, exceeded in the _Centinela contra Judíos_ of Padre Fray Francisco de Torrejoncillos, published as late as 1673 and reprinted in 1728 and 1731. In this popular exposition of Christian rancor, no story is too wild and unnatural to be unworthy of credence, if it illustrates the innate and ineradicable depravity of the Jew, and his quenchless desire to work evil to the Christian. The fables of the _Fortalicium Fidei_ are repeated as incontestable truths, and new ones are invented to prove that the virus is as active as ever. It makes no difference if the Jew is baptized, for this does not change his nature and his faith, and he remains the same implacable enemy.[798] The same temper is manifested in a memorial, drawn up about this time by an inquisitor, in answer to a proposition for moderating the harshness of inquisitorial procedure. The writer was evidently a man of learning and culture, but his paper is a bitter tirade against the Jews, insisting upon their diabolical nature and asserting them to be much worse now than when they crucified Christ. The evil is in their blood, forcing them to hate and rage against Christ, the Virgin and all who profess the Christian faith.[799] Popular beliefs that they had tails, and that they were distinguishable by a peculiar odor which they exhaled and that, as physicians, they killed one out of five of their Christian patients, were persistent outgrowths of the hatred thus inculcated.[800] Even to call a man a Jew was an offence justiciable by the Inquisition, for when, in 1646, Padre Boil, a royal preacher, in a sermon stigmatized as a Jew Fray Enríquez, of his own Mercenarian Order, the tribunal of Toledo promptly sent for him and, after detaining him for six months, sentenced him to two years' exile from the court, during which he was forbidden to preach.[801]