To introduce an archival protocol of a ‘Debate about methods in the social sciences, especially the conception of social science method represented by the Institute’, held on 17 January 1941 at the Institute of Social Research in New York, the article focuses on certain conflicts in substance and terms of discourse among members of the Institute, with special emphasis on Franz Neumann’s distinctive approaches, notwithstanding his professed loyalty to Max Horkheimer’s theory. These are seen to arise not only from Neumann’s (...) assignment as bargaining agent for the Institute and his distinctive relations with American colleagues, but also from their different orientations to the conflicted legacies of Weimar. (shrink)