Henry as an Electrical Pioneer

Henry as an Electrical Pioneer By BANCROFT GHERARDI An address presented at the Meeting of the National Academy of Sciences, April 25, 1932, at Washington, D. C. in commemoration of the H u n d r e d t h Anniversary of the Electrical Discoveries of Joseph Henry. The author expresses his appreciation of the researches of D r . Harold S. Osborne a n d M r . A. M. Dowling in establishing m a n y of the facts upon which this address is based, and of other assistance in its preparation. This research developed m a n y facts of interest a n d its results are separately published as a supplement to this issue of the Bell System Technical Journal.