Letter from Ronald Percy Bell, on a paper 'Gaseous unimolecular reactions theory of the effects of pressure and of vibrational degeneracy' by N B Slater, to D C Martin Paper reference code: A10 Bell suggests adding 'the late' to the paper for the benefit of future historians. Written at Balliol College, Oxford [England]. [Published in Philosophical Transactions B, 1953]. Endorsed on recto as received 6 February 1953. 4 February 1953