Copy letter from Robert William Frederick Harrison, to William Bate Hardy, [Fellow of the Royal Society], 9 Park Terrace, Cambridge In reply to Hardy's note of the 20th, it is not essential that Hardy should be present at the meeting of the Society next Thursday, as the Secretaries can read his paper. If Hardy would like the paper illustrated in any way it is desirable that diagrams or slides should be sent to the Society by Thursday morning. 22 January 1900