Robert Wilhelm Collection

Robert Wilhelm Bunsen, 19th century German chemist, (1900). Bunsen (1811-1899) is widely considered one of the greatest experimental chemists of the 19th century

Gustav Kirchhoff, Robert Bunsen and Henry Roscoe, scientists, c1860. Left to right: Gustav Robert Kirchhoff (1824-1887), German physicist; Robert Wilhelm Eberhard von Bunsen (1811-1899)

Gustav Robert Kirchhoff, German physicist, 1873. Kirchhoff (1824-1887) is known for his work on electricity, heat and optics

Gustav Robert Kirchhoff, German physicist, 1876. Kirchhoff (1824-1887) is known for his work on electricity, heat and optics

Spectroscopic apparatus used by Robert Wilhelm Bunsen and Gustav Robert Kirchhoff, c1895
Spectroscopic apparatus used by Robert Wilhelm Bunsen (1811-1899) and Gustav Robert Kirchhoff (1824-1887). Discovered Spectrum Analysis (1859)

Spectroscope, 1882. A spectroscope of the type used by Gustave Robert Kirchhoff (1824-1887) and Robert Wilhelm Bunsen (1811-1899) in studying the emission spectra of heated chemical elements

Robert Bunsen, German chemist, 1850s. Artist: C Cook
Robert Bunsen, German chemist, 1850s. Signed portrait; Bunsen (1811-1899) is widely considered one of the greatest experimental chemists of the 19th century

Spectroscope, 1872. Instrument of the type developed by Robert Bunsen (1811-1899) and Gustav Robert Kirchhoff (1824-1887) during the 1850s

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