Copy letter from Herbert Rix, to Mr George James Symons John Evans, the Royal Society Treasurer, is inclined to pay Harrisons 250 pounds on account for the Krakatoa work, as work on it has stopped due to a delay with the frontispiece. Before Rix sends the cheque, he advises Symons to check the bill as Symons' corrections come to 150 pounds, which is almost half the total amount. 18 July 1888