Copy letter from Herbert Rix, to Professor Percy Faraday Frankland, Fellow of the Royal Society 'Dear Sir, The printers have simply followed the standing rule, being unaware that the Report of the Water Research Committee is an exceptional case. If you will send me the account, it will, of course, be paid by the Society. Yours truly, H Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 2 November 1893