Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to George Henry ARA, 26 Glebe Place, Chelsea, SW 'No that the portrait of Sir David Gill has been deliverred here I take the opportunity of expressing to you on behalf of the Society our high appreciation of the generosity of Lady Gill and yourself in presenting us with this admirable picture of our esteemed Fellow. At the present moment we are disarranging all our pictures here on account of the necessity of putting them in a place of safety under the threat of airship attacks; but as soon as there is a greater sense of security we look forward to hanging the portrait in a suitable place upon our walls.' 14 May 1915