Part 1 Before and after Koyre: le debat Koyre-Duhem, hier et aujourd'hui, M.Clavelin; Alexandre Koyre et l'essor de l'histoire des sciences en France (1933-1964), R.Taton; Alexandre Koyre in America - some personal reminiscences, I.B.Cohen; Alexandre Koyre and the history of science in America - some doctrinal and personal reflections, J.E.Murdoch; Alexandre Koyre and Great Britain - Galileo and Mersenne, A.C.Crombie; considerations sur Koyre et l'Italie, P.Casini. Part 2 Ideals, images and reflections of science: la philosophie en science, S.Amsterdamski; Alexandre Koyre - between the history of ideas and sociology of disembodied knowledge, Y.Elkana; Koyre et les phenomenologues Allemands, K.Schuhmann; Meyerson and Koyre - toward a dialectic of scientific change, M.Biagioli; revolution, evolution and emergence in the development of modern science, I.B.Cohen; science and politics, with special reference to revolutionary and Napoleonic France, C.C.Gillespie; Koyre and the development of empiricism in the aater renaissance, M.Boas Hall; Leonardo da Vinci - from the "elementi macchinali" to the man-machine, P.Galluzzi; iconography of a new physics, W.B.Ashworth, Jr. Part 3 Communities, institutions, professions: the early Jesuits and the heritage of Domingo de Soto, W.A.Wallace; les jesuites et la philosophie naturelle de Galilee - Benedictus Pererius et le "de motu gravium" de Galilee, A.Carugo; science et spiritualite - la mouvance de l'oratoire, P.Costabel; les reformes et la vie scientifique en France au XVII siecle - pistes d'explication d'une carence, E.Labrousse; importance du dialogue - mersenne et son groupe, A.Beaulieu; la preface de Copernic au pape - esthetique humaniste et reforme de l'eglise, R.S.Westman; patronage and the publication of Galileo's "Dialogue", R.S.Westfall; changing patterns for the support of scientists from Louis XIV to Napoleon, R.Hahn; la professionalisation - un concept pour l'historien de la science francaise au XIX siecle, R.Fox. Part 4 Periods and revolutions: Alexandre Koyre, l'eveque tempier et les censures de 1277, G.Beaujouan; continuity and disconinuity in the history of optics - Kepler and the medieval tradition, D.C.Lindberg; la periodisation des mathematiques classiques, R.Rashed; Koyre parmi les masques et les visages de Paracelse, R.Halleux; hermetisme, mystique, empirisme, p.Zambelli; Alexandre Koyre and the scientific revolution, A.R.Hall; Alexandre Koyre - la revolution scientifique introuvable?, E.Coumet; techniques et revolutions scientifiques - l'exemple de la mesure du temps, D.Landes; est-ce qu'il y a des contre-revolutions scientifiques?, S.Moscovici; la posterite de la "query n 31" - oppositions programmatiques et continuite explicative, F.Gil.
