Copy extract of a letter from [Joseph Ernest] Petavel, Director of the National Physical Laboratory, to [George Clarke] Simpson, Director of the Meteorological Office, Air Ministry, Kingsway, London Thinks that it would be best to apply to the Royal Society for particular information regarding Dr [Charles] Chree's retiring allowance [pension]. Notes that the Pension Fund he mentions is a fund held by the Royal Society, and that the [National Physical] Laboratory has paid into this fund. 1 April 1921