Copy letter from Herbert Rix, to A G Charleton, Ivyhurst, Greyhound Lane, Streatham Common 'Dear Sir, I have to acknowledge your letter of yesterday's date and seven printed papers. We are obliged to you for this kind present. The papers will be preserved in our Library, after they have been presented at the next meeting of the Society. I am, yours faithfully, H Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 29 May 1894