Visits to Paris and Poitiers June 1954 Correspondence relating to Haldane's trip to lecture in Paris and Poitiers, June 1954. Primarily correspondence with the Fondation Singer-Polignac and the Institut de Statistique de L'Université de Paris. Includes a postcard of the Grotte de Lascaux, a typewritten travel itinerary and two pages of notes in French and English. Dec 1953 - Jul 1954