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Miss Elizabeth Funk, 1917. Creator: Harris & Ewing. Miss Elizabeth Funk, 1917. Creator: Harris & EwingMiss Elizabeth Funk, 1917
Interior Dept. - Bureau of Mines, between 1910 and 1920. Creator: Harris & Ewing. Interior DeptInterior Dept. - Bureau of Mines, [Washington, DC], between 1910 and 1920. Scientist using a bunsen burner to heat a glass instrument
Army, U.S. Army Medical School; Typhoid Vaccine, 1917. Creator: Harris & Ewing. Army, U.SArmy, U.S. Army Medical School; Typhoid Vaccine, 1917
Robert Wilhelm Bunsen, 19th century German chemist, (1900). Bunsen (1811-1899) is widely considered one of the greatest experimental chemists of the 19th century
Henri Moissan, French chemist, c1900. Moissan (1852-1907) recovering diamonds after dissolving the iron surrounding them after the final stage in his production of artificial diamonds at the Edison
Spectroscopic apparatus used by Robert Wilhelm Bunsen and Gustav Robert Kirchhoff, c1895Spectroscopic apparatus used by Robert Wilhelm Bunsen (1811-1899) and Gustav Robert Kirchhoff (1824-1887). Discovered Spectrum Analysis (1859)
Robert Bunsen, German chemist, 1850s. Artist: C CookRobert Bunsen, German chemist, 1850s. Signed portrait; Bunsen (1811-1899) is widely considered one of the greatest experimental chemists of the 19th century