Copy letter from Herbert Rix, to Dr Philip Lutley Sclater, Fellow of the Royal Society 'Dear Sir, I find that I have not yet had any written request to resuspend Mr Seebohm's certificate. This is necessary, as the supplementary certificate has to be attached to the old one. Please sign and return the inclosed slip to me. Yours truly, H Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 8 December 1893