Copy letter from Herbert Rix, to Professor Henrici, Fellow of the Royal Society 'Dear Sir, Please be good enough to return the paper by Mr Brennand, referred to you, so that we receive it in time to place upon the table on Thursday afternoon, when the paper will be read. In case your report is not finished we shall return the MS. [manuscript] on Friday. Yrs [Yours] faithfully, H Rix Asst. Sec. RS [Assistant Secretary, Royal Society]'. 5 December 1893