Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to the Most Hon. the Marquess of Lansdowne [Henry Petty-Fitzmaurice] D.S.O., W1 Informs the Marquess of Lansdowne [Henry Petty-Fitzmaurice] to expect permission to create copies of certain letters of Sir William Petty. Mentions that Mr. White will be able to identify the letters in question. 31 March 1928