1909 Breviarium S.O.P.

"For accuracy of text, clarity of rubrics, and convenience of arrangement, [the 1909 Breviarium S.O.P.] was the finest edition of the Dominican breviary ever published.  The Order was indeed fortunate to receive from this painstaking scholar the fruits of nearly forty years of research."
("The History of the Dominican Liturgy", Fr. William Bonniwell, O.P, 1944, p. 344)