3. The members of this Congregation conscientiously undertook the work entrusted to them; their careful work was approved by Leo Allatius who wrote in a discussion of the Greek Euchologion: "I could relate and investigate many matters about the book, but since it is submitted to the censure and judgment of keen scholars, I wait for a true statement and an infallible verdict concerning it." They met indeed for eighty-two sessions, as was long ago affirmed by Cardinal Franciscus Barberinus the elder at the meeting of the Congregation for the Propagation of the Faith. Pope Innocent X attended this meeting on January 23, 1645, shortly after the death of his predecessor Urban, the uncle of this cardinal. Yet the correction of the Euchologion was not finished, and the new edition could not be brought to completion.