B. A. O. Williams: KNOWLEDGE AND REASONS r A. ]. Ayer: COMMENTS ON PROFESSOR WILLIAMS' "KNOW- LEDGE AND REASONS" 12 E. ]. Furlong: MEMORY RE-CHAINED 17 Eduardo Nicol: CONNAISSANCE ET RECONNAISSANCE 23 Andre Mercier: DE L'EvIDENCE 2 3 G. H. von Wright: WITTGENSTEIN ON CERTAINTY 47 B. F. McGuinness: COMMENTS ON PROFESSOR VON WRIGHT'S "WITTGENSTEIN ON CERTAINTY" 6r ]. N. Theodoracopoulos: KANT ET LA CONNAISSANCE DE SOl 66 PREFACE At its meeting at Heidelberg in September 1969 the Institut Inter- national de Philosophie decided to hold its next Entretiens in Helsinki. The theme selected for the meeting in Finland was Problems in the Theory of Knowledge (Probtemes de la tMorie de la connaissance). The Entretiens de Helsinki took place from 24th to 27th August 1970. As local host organization, the Philosophical Society of Finland was responsible for the external and social arrangements of the Entretiens. A grant from the Finnish Ministry of Education and the Oskar Oflund Foundation had been obtained for the purpose. 40 members of the Institut participated in the Entretiens. The various sessions, which were also open to members of the Philosophical Society of Finland, were attended by on average 100 people.