Copy letter from Herbert Rix, to John Whitaker Hulke, [Fellow of the Royal Society] 'Dear Mr Hulke, I know nothing about the points you query, but you could get answers in time by writing tonight to the Secretary...[?] Charterhouse, E.C. or to Dr Duncan, 5 Grosvenor Park, Gunnersbury, who has just resigned. The information of which I spoke was that contained in enclosed, which please return to me by Thursday if you do not accept. Yours truly H Rix P.S. I see that Dr Duncan's letter does [underlined] tell you part of what you want to know. H.R'. 27 May 1891