Letter from Sydney Chapman, on a paper 'The thermochemistry of carbon: valence states, heats of sublimation and energies of linkage' by L H Long and Ronald George Wreyford Norrish to J D Griffith Davies, Assistant Secretary of the Royal Society He is returning the paper without filling out the report form, as he doesn;t know enough about the subject to act as a referee. From reading it, it seems suitable for publication. [Published in Proceedings of the Royal Society A, 1945]. 1 February 1946