Letter from W M [William Mundell] Thornton, Armstrong College, Newcastle upon Tyne, to [Joseph] Larmor He is returning the manuscript of his paper with the suggested alterations made. He has not seen [Thomas Henry] Havelock but thinks that the changes will meet Larmor's views. Thornton has not thought of the paper as mathematical, but rather a practical attempt to do for dielectrics what [James Alfred] Ewing's permeability bridge does for ions. He understands that Larmor thinks the work on cylinders is unsatisfactory, but the usual condensor methods are less so. 7 April 1909