HOPKINSON,  John.  Original papers by the Late John Hopkinson . Volume I: Technical Papers; volume II, Scientific Papers. 

Cambridge:  Cambridge University Press,  1901.  294+390pp  8vo.  Cloth.  Very fine condition.  But for a small smudge on the spine of volume one, this is a superior set. $200

"In addition to having been elected fellow of the Royal Society at twenty-nine, he was twice president of the Institution of Electrical Engineers. At the age of forty-nine Hopkinson, with three of his children [another, Bertram, wrote the 58-page Biography in this volume], was killed in a mountain climbing accident in the Alps" --Bern Dibner in D. S. B. VI: 504). Some of the contents of interest: On Electric Lighthouses, pp 6-33; On Electric Lighting, pp 33-56; and Dynamo-Electric Machinery pp 84-121.