Copy letter from Robert William Frederick Harrison, to Professor George Carey Foster, Fellow of the Royal Society Encloses herewith cards concerning new paper by Honourable R J Strutt and J Evershed [not enclosed]. Lord Rayleigh [John William Strutt] writes concerning a paper by his son, that he believes J J Thomson knows all about the matter. Asks to whom Foster thinks the papers should be submitted for reference. 18 December 1900