In manuscripts and early editions of the Roman liturgy, the variations that on certain feasts replaced the normal "Communicantes" prayer were given immediately after the proper preface of the feast and were distinguished from the preface by the heading ""Infra Actionem"", which meant "within the canon". This custom was maintained in the original Tridentine edition of the "Roman Missal" and in later editions printed before 1962. In these editions the normal text of the prayer is also headed "Infra Actionem". Adrian Fortescue explains the presence of this heading within the Canon by saying that the heading was by then looked on as the title of the prayer in any of its forms and was therefore added also to the normal text of the prayer. The 1962 edition no longer printed the by then reduced number of variants of the "Communicantes" prayer with the prefaces and placed them instead within the Canon after the standard form of the prayer. The surviving proper "Communicantes" were five: for Christmas and its octave; Epiphany; the period from the Easter Vigil to the following Saturday; the Ascension of the Lord; and from the Vigil of Pentecost to the following Saturday.