Letter from [Alan Archibald Campbell] Swinton, to Percy Dunsheath [Esquire], O. B. E. Informs that Wenleys have sent him a copy of Dunsheath's recent paper on "Points in the Operation of Dielectrics", some which interested him by recalling experiments he conducted himself in 1911, repeating with a 10, 000 volt battery current experiments on liquid dielectric motions that had been discovered nearly 100 years ago by the first Lord Armstrong with his hydro-electric machine. Encloses a copy of his 1911 paper [enclosure not present]. 12 April 1928