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Diagram of the Model DU Spectrophotometer, showing Mounting Block, Cell Compartment, Phototube Housing and Lamp Housing detached from the Monochromator
Henry Enfield Roscoe, Ph.D., On Spectrum Analysis, New York, 1869
Spectroscopic Apparatus, Steel engraving, 1869
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Henry Enfield Roscoe, Ph.D., On Spectrum Analysis, New York, 1869
Image 29 of 30

Laboratory Views

Henry Enfield Roscoe, Ph.D., On Spectrum Analysis, New York, 1869
Roscoe's book helped to popularize spectroscopy. The new technology's potential applications to forensic medicine sparked great enthusiasm.
National Library of Medicine