Letter from William Huggins, 90 Upper Tulse Hill, S W [South West] London, to the Secretary [Joseph Larmor] He cannot answer Larmor's questions but has found them 'most intellectually refreshing'. He questions 'What form of energy has the radium by its greenhouse action appropriated and stored up? If ultraviolet light then there should be no renewal of emanation if the Ra was kept in the dark?'. He says that [Ernest] Rutherford suggests that the lead and helium are combined in a closer way. He ends his letter by noting the deaths of [Arthur] Schuster's father and [Herbert] Rix's wife [Alice Rix]. 27 August 1906