Conference on “The Significance of Sociology for the Strategy of the Church,” Ecumenical Institute, Chateau de Bossey, Céligny, Vaud, Switzerland. August 29 – September 5, 1950. 10 pp. Rauner Library, Dartmouth College. {= Soziologie I (1925), pp. 41-56, Soziologie, Bd. 1 (1956), pp. 48-56.} Unpublished. Reel 8, Item 438. – 1950