Letter from J D [Joseph David] Everett, Lennoxvale, to [Joseph] Larmor Everett asks for an explanation of Larmor's dictum on raising the temperature of water by 1 degree centigrade, taking into account volume and surface area. Everett is engaged in a new edition of his work on units, and would like to be correct. He lists three areas of doubt, saying that it is probably not worth going into particulars until such questions are cleared up. He asks if the result depends upon the experimental value of tension in water films found by [Georg Hermann] Quincke. He concludes by noting that Larmor seems to have made a good start at Cambridge. 11 November 1885