General correspondence C G Cambridge, B G Campbell, E A Carmichael, C G Caro, A C Chibnall, John Clarke, W A Cobb, R S Comline, J Comroe, Cook, R M Chantry, K E Cooper, J C Corbett, H Corrodi, J G Cox, R V Coxon, Cole, Cumming, D R Curtis, D C Cusworth. February 1959 - January 1971