Copy letter from Herbert Rix, to Lord Kelvin [William Thomson], President of the Royal Society 'My Lord, We shall be glad if you will return the paper by Mr Davison, referred to your Lordship on January 19th last, so that we may receive it in time for the meeting on Thursday when it is to be read. My paper shall be sent on again on Friday morning. Yours truly, H Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 13 February 1894