Correspondence and papers regarding organisation of individual EUCHEM Conferences, twentieth meeting of Committee for EUCHEM Conferences etc Correspondents include: B.148: Gunhild Aulin-Erdtman, Wolfgang Fritsche, Paul Hagenmuller, J Johan Lindberg, John S Shorter B.149: John Herbert Beynon, Gunhild Aulin-Erdtman, C Gorller-Walrand, H G Viehe, X de Hemptinne, J Momigny B.150: Franciska Sundholm, H Noth B.151: Gabriello Illuminati, J Mathieu, G Cauquis, J Johan Lindberg B.152: J Cunningham, Paul Hagenmuller, B Waegell, J Johan Lindberg, Franciska Sundholm, Per J Garegg, Umberto Belluco, Gabriello Illuminati, B Gorller-Walrand B.153: John Herbert Beynon, J Johan Lindberg, Gunhild Aulin-Erdtman, G Dijkstra, M Gaune-Escard, H Noth, Rolf Huisgen, J Mathieu, Wolfgang Fritsche, H G Viehe, C Gorller-Walrand, M Le Grand, J Lodewijks, James Grimshaw, Alessandro Dondoni, Fulvio Cacace, John S Shorter, X de Hemptinne, Franciska Sundholm B.154: Umberto Belluco, B Waegell B.155: Wolfgang Fritsche, Franciska Sundholm, J Johan Lindberg, Alessandro Dondoni, J Cunningham, Umberto Belluco B.156: Rolf Huisgen, J Cunningham, O Makitie, Paul Hagenmuller January - November 1981