Letter from the Clerk of the the Metropolitan Water Board, Savoy Court, Strand, to Robert [William Frederick] Harrison 'Dear Sir, With reference to the copies of Reports to the Water Research Committee of the Royal Society which you have kindly sent me, I am informed that Professor Marshall Ward in 1897 contributed a Report to the Committee on the bacteria from Thames water, and should this be so, I should be glad if you could favour me with six copies of the report. I am, Yours faithfully, [?]'. 19 April 1905