ScientificAmerican1894-11-10.jpg ThumbnailsScientific American 1903-12-26ThumbnailsScientific American 1903-12-26ThumbnailsScientific American 1903-12-26ThumbnailsScientific American 1903-12-26ThumbnailsScientific American 1903-12-26
Herman Ludwig Ferdinand von Helmholtz. Death September 8, 1894.



Source: Steve Kirch, collector, and creator of a great website about SCIENTIFIC AMERICAN in the past

Restoration by: magscanner