Copy letter from C R [Charles Richard] Weld, the Assistant Secretary of the Royal Society; to Dr Wheewell Instructed by the Government Grants Committee, to inform Wheewell, as Chairman of the SubCommitee for a grant of £100. This is for Thompson and Joule for their work on the thermal effects of air passing through small apertures. Asks for a report on the progress of the experiments, expenses already made, and estimated expenses. 12 December 1853