German physicist; born at Neu-Strelitz Sept. 28, 1854; studied at the University of Strasburg, whence he was graduated as Ph.D. in 1878. From 1881 to 1884 he was assistant in the Physical Institute of the university, and in the latter year was admitted as privat-docent (Feb. 5) and assistant professor (Sept. 27). Cohn is the author of "Elektrische Ströme," Leipsic, 1897, and "Das Elektromagnetische Feld," Leipsic, 1900.

  • Poggendorff, Biographisch - Literarisches Handwörterbuch, iii., iv.
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