Copy of a letter from Edward Sabine, Woolwich to [William Radcliffe] Birt Sabine acknowledges Birt’s letter and remarks it was ‘the best possible step’ for a ‘satisfactory decision’ to address Sir [John] Herschel. Refers to observations at Kew and Greenwich and what their intentions were. Sabine suggests Birt should clearly specify why the observations at Greenwich are ‘deficient’ to those at Kew, in order to argue for the continuance of these observations. Remarks on the completeness of the meteorological observations at Greenwich. Refers to [George Biddell] Airy’s ‘disposition’ to make his Observatory as efficient as possible. Reference to meteorological observations at Kew and the intention behind them. 25 May 1848