Copy letter from Robert William Frederick Harrison to Commander P D Malty, RN, Whitehead Torpedo Works, Ltd, Weymouth 'With reference to your letter of November 23, the paper by Prof Osbourne Reynolds on the Theory of Lubrication was published in the Philosophical Transactions [of the Royal Society], Vol. 177, 1886. A separate copy of the paper can be had of Messrs Dulau & Co., 37 Soho Square, London, W., price 2s. 6d.' 27 November 1911