Letter from Edward Armand Guggenheim, on a paper 'A thermodynamical investigation of the system benzene-diphenyl' by John H Baxendale, B V Enüstün and J Stern, to D C Martin, Assistant Secretary of the Royal Society Paper reference code: A41 Guggenheim writes regarding proposed amendments to the paper. He 'consider[s] that the authors' attitude is unreasonably obstructive and indicates that they are too lazy to rewrite the parts of the paper calling for improvement.' Written at the Department of Chemistry, The University of Reading [England]. [Published in Philosophical Transactions A, 1951]. Endorsed on recto as received 8 May 1950. 6 May 1950