Correspondence between Dr. Dworzecki and the organizers of the Second World Congress of Jewish Studies in Jerusalem, regarding Dworzecki's lecture at the congress, 1957, and other documentation regarding the congress, 1956-1959 - Letter written by Dr. Dworzecki to Mr. Kalman in Paris, with a request to find a publisher in France to publish his book "Bein Habeitarim" in Yiddish without using reparations money, and including the possibility of finding financing in order to publish the book in French; - Proposal to Dr. Dworzecki by the congress organizers , to lecture about "Hebrew creativity during the period of horror [Holocaust]"; - Proposal by Dr. Dworzecki to the congress organizers, to lecture about "Nazi intrigues and campaigns in the area of the biological destruction of the occupied nations in Europe"; - Proposal by Dr. Dworzecki to lecture about the "Demographic problems of the She'erit Hapletah in Israel"; - Lecture written by Dr. Dworzecki in English, on the subject of demography; - Booklet published by the Second World Congress of Jewish Studies in Jerusalem, including the program of the congress; - Booklet with abstracts of the lectures given at the congress; - Abstract of an article by Raymond V. Baron, relating to the lecture he gave at the congress; - Article by Dr. Abraham Sharon (Schwadron).