Unpublished letter, 'On the method proposed by Professor [George Biddell] Airy for expanding the disturbing function in his paper in "Philosophical Transactions" for 1833' from Peter Mark Roget to James Ivory Roget confirms receipt of Ivory's letters, including the letter regarding Airy's method. Roget awaits confirmation from Ivory regarding action to take upon the letters, noting that it is not standard practice to present letters before the Royal Society. 25 November 1833