Description | Published by the Colliery Guardian Company Limited, Holborn, London. 212 pages, with lists of illustrations and plates and index at end. With a few loose inserts, including copy letter from H. Eustace Mitton of Colliery Offices, Codnor Park, enclosing copy of the volume and asking for any remarks on the experiments, 15 Dec 1910 and sheet of paper with printed letterhead for Kirkby Colliery Office. |