Letter from Meredith Gwynne Evans to D C Martin, concerning three papers: 'Two phase equilibrium in binary and ternary systems. V. Carbon dioxide-ethylene VI Carbon dioxide-propylene' by G G Haseldon, Dudley Maurice Newitt and S M Shah, 'Two phase equilibrium in binary and ternary systems. VII. Calculation of latent heats and some other similar properties' by R F Strickland Constable and 'Two phase equilibrium in binary and ternary systems. VIII. The integral flash latent heat at constant pressure of the system ethylene-carbon dioxide' by A J Barnard, S P Luthers, Dudley Maurice Newitt and M U Pai Paper reference code: A68-A70 Evans recommends publishing all three papers together in the Proceedings. Written at University of Manchester, Manchester [England]. [All three published in Proceedings A, 1951]. Endorsed on recto as received 26 April 1951. 24 April 1951