Letter from J D Griffith Davies, Assistant Secretary of the Royal Society, on a paper 'On the salinity of the surface waters of the Irish Sea' by Joseph Proudman to J N Carruthers, Hydrographic Department The author has requested that the enclosed chart should be sent to him. Apologises for the delay in sending it - this was due to the formalities of printing. It should be sent directly to the author once he he finished with it. [Published in Philosophical Transactions A, 1946]. 20 March 1941