Copy letter from Robert William Frederick Harrison, to Dr W Owen Travis, Ford's Hotel, Manchester Street, Manchester Square, W. 'Dear Sir, [Blank space] October 17th, and to say that the paper by Dr Reid and Dr Chick appeared in Proceedings of the Royal Society Nos B517 and B 528. Both these numbers may be obtained of Messrs Harrison & Sons, 45 St Martin's Lane, W.C. price 2/6 each'. 19 October 1907