Note 13 — Contributions from The Museum of History and Technology: Paper 38 The Earliest Electromagnetic Instruments
Reading edition
Some prominent examples of this brevity of treatment are in E. Hoppe, Geschichte der Elektrizität (Leipzig, 1884); O. Mahr, Geschichtliche Einzeldarstellungen aus der Elektrotechnik (Berlin, 1941); R. S. Whipple, “The Evolution of the Galvonometer,” Journal of Scientific Instruments (1934), vol. 7, pp. 37-43; William Sturgeon, Scientific Researches (Bury, 1850); A. W. Humphreys, “The Development of the Conception and Measurement of Electric Current,” Annals of Science (1937), vol. 2, pp. 164-178.