The Catholic Church and the Knights of Labour. A dissertation submitted to the faculty of the graduate school of arts and sciences of the Catholic University of America in partial fulfillment of the requirements for the degree of Doctor of Philosophy, by Henry J. Browne (The Catholic University of America Studies in American Church History, vol. XXXVIII, edited by Peter Guilday and John Tracey Ellis; Washington: Catholic University of America Press, 1949, pp. xvi, 415, $4.00, paper, $4.50, cloth).