Copy letter from Arthur William Rucker, to Professor Arthur Smithells [Fellow of the Royal Society], H M Dason and H A Wilson Concerning the recipients paper 'The Electrical Conductivity and Luminosity of Flames Containing Vaporised Salts', the Committee think the curves should be redrawn and reduced so as to be reproduced in the text, and it would be in some cases an improvement to draw curves representing the theoretical formulae, and allow the points of observation to indicate the departures there from, rather then to draw smooth curves through the observed points. [9 December 1898]