Thurston, Herbert. Catholics and Divorce. London: Catholic Truth Society, 1934. 
Paper wrapper, 4 3/4 x 7, 24 pp., very good. First published in 1921, this a later printing. Very good. Pamphlet.
Argument and statistics backing the idea the divorce and annulment are not easy to obtain in the Catholic Church, and the Protestants who say otherwise are misinformed or disingenuous. "...my main contention is that the ever-increasing prevalence of divorce...must surely, if slowly, undermine the conception of matrimony as a sacred and life-long engagement."