Waldemar Chorążyczewski - Archives and memory. From the history of Polish archives Krzysztof Syta - Archive of Prince Andrzej Hrehorowicz Sanguszko of Kowel from the end of XVI century Rafał Jankowski - Diaries of so-called Warsaw Archive of Radziwiłł Family Wiesław Nowosad - Olendrian colonization in estates in Royal Prussia nobility. Sources condition and research opportunities Włodzimierz Bagieński - Population record in South Mazovia from the middle of nineteenth to the middle of twentieth century Lidia Wakuluk - Salt mining in Inowrocław in nineteenth and twentieth century - source value of retained materials Melania Dereszyńska-Romaniuk - For eightieth anniversary of State Archive in Bydgoszcz Robert Degen - Collecting in Polish archives in 1945-1989. Research problem and basic literature survey Ewa Głowacka - Trends and purposes of studies on use of university libraries in the World 1987-2000