Letter from George Biddell Airy, Royal Observatory Greenwich, to Samuel Hunter Christie, [Secretary of the Royal Society] Enclosing an application from the principal librarian of the University of Leyden for a copy of the 'Greenwich Observations' from 1830 to the current edition. The second page is another letter to Christie, dated the same day, in reaction to a letter by [John David] Roberton including a query about [Luke] Howard's paper submitted to the Society. [Enclosures not present.] 10 February 1841