Letter from Kurt Alfred Georg Mendelssohn, on a paper 'The phase transition in superconductors. III. Phase propagation below the critical field' by T E Faber, to David Christie Martin, the Royal Society Paper reference code: A184 Returning Faber's paper, which he believes is still too long for printing in the Proceedings. Suggests that Martin gives the author a specific word count to further reduce the paper by before publication. [Published in Proceedings A, 1954]. Received 23 October 1953 21 October 1953