inconsiderable is to be accepted as evidence that there has been no attempt to make specific condemnation of the whole mass of pernicious literature.” According to the calculation of Hilgers, the Indexes of the last three hundred years contain an average of sixteen new titles only for each year; and these sixteen titles represent the total of the selections made from the literatures of all the countries of the world, principally of course of those of Europe. The Index presents for us a collection of the utterances of the Church authorities concerning specific condemnations of individual books. It may be said to bear the same relation to the general censorship decrees as that borne, for instance, by a collection of the judgments of a criminal court to the provisions of criminal law. It is the business of the court to arrive at a judgment in each individual case and in each case to determine whether the law has been broken. The Index condemnations, like the court judgments, may be accepted as representative in the one case of the general policy or principles by which the Church is guided and in the other case of the principles and of the provisions of the law. In the Constitution _Officiorum ac munerum_, section I, chapter 10, is the instruction: “While it is the duty of all believers, and particularly of the educated Catholic, to bring to the attention of the authorities of the Curia or of the bishops, books believed to be dangerous, this responsibility rests more particularly upon the nuncios, the Apostolic delegates, and the rectors and associates of the higher schools.” The word denunciation has a serious sound and yet such a word may be applied as describing the duty of any magistrate acting under the law of the land. “The Index is not,” continues Hilgers, “and never has claimed to be, a systematic and comprehensive collection of the titles of each class of prohibited books. It is no more just on this ground, however, that the Index should be charged with lack of system, plan, or consistency than that the civil authority should be criticised because, under the actual working of the law, there may not be each year examples of the imposition of penalties for all the offences specified.... It is further to be borne in mind that the influence of any particular work is naturally not the same during different periods or under different conditions; a book which at the time when certain issues were pending might have exercised a seriously pernicious influence, could for later generations, under different conditions, be studied safely simply as an historical record. It is the purpose of the Index as of the _Decreta Generalia_ to protect and defend the true Faith, sound morality, and wholesome conduct. The censorship prohibitions constitute one means by which those to whom has been confided the care of the flock of the faithful may be enabled to fulfil their responsibilities.”