Letter from the Hydrographer to the Navy, the Admiralty, on a paper 'On the salinity of the surface waters of the Irish Sea' by Joseph Proudman to the Secretary of the Royal Society It is desireable that the publication should be deferred until after the war. The Admiralty would like to have twelve copies of the paper. [Published in Philosophical Transactions A, 1946]. Endorsed on recto as received 18 December 1940. 14 December 1940