Let me now remind you of Archbishop Lanfranc's statute for English Benedictines, dated 1070, which was based, as he himself tells us, on the general monastic practice of his time:
On the Monday after the first Sunday in Lent, before brethren come into the Chapter House, the librarian (custos librorum) shall have had a carpet laid down, and all the books got together upon it, except those which a year previously had been assigned for reading. These brethren are to bring with them, when they come into the Chapter House, each his book in his hand....
Then the librarian shall read a statement as to the manner in which brethren have had books during the past year. As each brother hears his name pronounced he is to give back the book which had been entrusted to him for reading; and he whose conscience accuses him of not having read the book through which he had received, is to fall on his face, confess his fault, and entreat forgiveness.
The librarian shall then make a fresh distribution of books, namely, a different volume to each brother for his reading.