Beginning with v. 3 most volumes include a cumulative alphabetical list of memoirs.
Imprint varies: Bruges [Belgium] : Ex Officina "De Tempel", <1958- >; Philadelphia, Pa : Department of History and Sociology of Science, University of Pennsylvania, 1985-
In English and French, 1936-63.
Vols. for 1985- issued by the History of Science Society.