|Alternative reference number
|Copy letter from Robert William Frederick Harrison, to Professor Sollas, Fellow of the Royal Society
|18 May 1898
|The copy of Part III which Sollas returned is the only corrected one that have. Harrison therefore returns it and asks for the fourth part, which is the only one now outstanding. Intends to issue all four together in the 'Proceedings [of the Royal Society]' so therefore needs all four together in hand.