Stanislas DU LAC (1835-1909) Jesuit, founder of the French Catholic Youth Action. 4 L.A.S., Paris 1879, [to Léonce Détroyat]; 5 pages and a half in-8, headings École Ste Geneviève. July 14. The diary of his correspondent "can continue to serve our cause effectively only as long as the alliance to which you do not refuse yourself remains unknown"... He sends him two pamphlets to point out to his readers... November-December, 3 letters about a meeting at the École Monge.