Researches on the solar spectrum, and the spectra of the chemical elements / by G. Kirchhoff ; translated with the author's sanction from the Transactions of the Berlin Academy for 1861, by Henry E. Roscoe.

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Researches on the solar spectrum, and the spectra of the chemical elements / by G. Kirchhoff ; translated with the author's sanction from the Transactions of the Berlin Academy for 1861, by Henry E. Roscoe. Public Domain Mark. Source: Wellcome Collection.

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This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.