Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to H. M. Abrahams Esq.; Elm Court, Temple, E.C.4. In reply to H. M. Abrahams' enquiry about the two papers by Professor [Archibald Vivian] Hill, informs him that they were published in the Proceedings B. 713 (August 1927) and can be purchased from Messrs Harrison and Sons. 30 September 1927