File 'NIG 231 BNCCIG [British National Committee for Co-operation in Geophysics] Meetings B (closed)', minutes and correspondence, 1961 Correspondence regarding: the British National Committee for Cooperation in Geophysics [Previously the British National Committee for the International Geophysical Year], Ionosphere conference. URSI symposium on space communication research Circulation lists Council Agenda Applications for final grants for the analysis of IGY data list. British National for Cooperation in Geophysics meeting minutes and attendance sheet. 1961