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From left to right, chemists and physicists: Kirchhoff, von Bunsen and Roscoe c1860. [1910]. Gustave Robert Kirchhoff, German physicist (1824-1887), Robert Wilhelm Eberhard von Bunsen, German Physicist and chemist (1811-1899) and Sir Henry Enfield Roscoe, English Chemist, (1833-1915). From "History of Chemistry", by Edward Thorpe. (London, 1910). Halftone.

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Photos12.com - Ann Ronan Picture Library

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Photo12/Ann Ronan Picture Library

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ARP07104_460001168

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26,0Mo (966,1Ko) / 21,7cm x 30,0cm / 2568 x 3543 (300dpi)