The Pope added, that he was informed that a great number were in the possession of librarians and private persons, particularly the Spanish Bibles mentioned in the catalogue, and the Missal and Diurnal in the supplement. The Council of Trent, after acknowledging the necessity of treating the writings of heretics with great severity, commissioned the celebrated Carranza to compose the catalogue. After having examined the great number of books submitted to the council, he sent all those which did not contain any thing reprehensible to the Dominican convent in the city of Trent, and caused the rest to be burnt, or torn, and thrown into the Adige.[6] Carranza soon after accompanied Philip II. to England, where he not only converted many Lutherans, but caused many bibles which had been translated to be burnt. Some bibles, which had been introduced into Spain, and were not upon the list, were also prohibited; and the inquisitors were commanded to publish the interdict, and to employ severe measures against those who refused to obey it. The ordinances of the Council of Castile, composed by the order of the king, and approved by him, were published in the same year; they gave the council the privilege of permitting books to be printed, on the condition that they should be examined previously, if the subject of which they treated was important. Charles V. and Philip II. had regulated the circulation of books in their American states. In 1543 the viceroys and other authorities were commanded to prevent the introduction or printing of tales and romances. In 1550 a new decree obliged the tribunal of the commerce of Seville to register all the books destined for the colonies, to certify that they were not prohibited. In 1556 the government commanded that no work relating to the affairs of America should be published without a permission from the council of the Indies, and that those already printed should not be sold unless they were examined and approved, which obliged all those who possessed any to submit them to the council. The officers of the customs in America were also obliged to seize all the prohibited books which might be imported, and remit them to the archbishops and bishops, who, in this case, possessed the same powers as the inquisitors of Spain. Lastly, Philip II. in 1560 decreed new measures, and the _surveillance_ was afterwards as strictly observed in the colonies of the New World as in the Peninsula.