Letter from Charles H [Herbert] Lees, Greenacres, Mayfield Avenue, Woodford Green, Essex, to [Joseph] Larmor He thanks Larmor for his note and gives dates [for a meeting?]. He gives simple forms of Drude's theory and J.J. [Joseph John] Thomson's theory leads to the same result. His own results, with that of others in determining pressure down to liquid air temparatures, show that lead and cadmium differ from other metals, which he lists, and these show large deviations. He is sending a paper on the topic to the Physical Society, which will be taken immediately after his Royal Society paper appears. He notes another objection to Drude, in the high heat conductivity of quartz. 7 November 1918