H. H. Ashdown

Discussion on ¿Transformers for electric furnaces¿ before the Institution, 22 January, 1920

Shamus P. Smith, H. W. Clothier, H. M. Sayers, 1920 .

Discussion on ¿Large electric steel-melting furnaces¿ at a joint meeting of the Institution and the Iron and Steel Institute, 8 May, 1919

W. M. Mordey, David Carnegie, Gisbert Kapp, .