The following collection of hitherto inedited documents. concerning the English Martyrs has been for many years in preparation. It was begun by the late Father John Morris, S.J., who had been entrusted by the successive Cardinal Archbishops of Westminster with the office of 'postulator' for the Beatification of the English Martyrs. Having succeeded him in that office, I had many occasions, as time went on, for adding to Father Morris's portfolios many notes and transcripts, taken from most, or all, libraries and archives in which there seemed a reasonable likelihood of finding pieces that would illustrate the lives of the Martyrs.