Copy letter from Herbert Rix, to Major Thomas Seymour Burt, Fellow of the Royal Society 'Dear Sir, I am exceedingly sorry to hear of your heavy loss, and so I am sure, will my chiefs be, when I communicate the fact to them. We have taken note of your new address, and our printers shall be instructed to send all publications there in future. Yours most truly, Herbert Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 9 October 1889