Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr [Edward Stuart] Russell 'I have been asked by Mr Hardy to acknowledge yout letter of the 23rd January, and to send you the MS. of Professor [C. F. J.] Petersen's paper ['The Necessity for Quantitative Methods in the Investigation of the Animal Life on the Sea Bottom'], which you have decided to withdraw.' 25 January 1924