Copy letter from Robert William Frederick Harrison, to Professor William Cawthorne Unwin, Fellow of the Royal Society An invitation has been received for a representative of the Royal Society to attend the celebration of the coming of age of the Junior Institution of Engineer, on 26 June. Asks if Unwin would likely to attend the celebration and represent the Society, or if not, whether he could suggest another Fellow who could be asked instead, if such attendance is desirable. Nothing is known in the office of the standing of the Institution. 17 June 1905