Copy letter from Herbert Rix, to Lord William George Armstrong, Fellow of the Royal Society 100 copies of Armstrong's paper shall be sent to him, instead of the 50 claimed on his form, since Armstrong is entitled to the former number without charge. In addition Armstrong can have any number he pleases up to 150 at cost price, making 25 copies in all. Rix asks to hear at once if Armstrong wishes to have the whole of this number or otherwise. 29 September 1892