Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,393 pages of information and 233,863 images on early companies, their products and the people who designed and built them.

Pierre Charles Oscar Janssen

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Pierre Charles Oscar Janssen (1824-1907), French Astrophysicist


1907 Obituary.[1]




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