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  1. A three-quarter-length portrait of Thomas Graham (1805–1869), the Scottish chemist who worked on the diffusion of gases.

    • 1800

    An oval bust-length portrait of D. Alexander Nicolaus Scherer.

  2. A portrait of English naturalist Charles Darwin (1809–1882) sitting in a wicker chair near a hanging tapestry.

    • 1900s

    A half-length portrait of Friedrich Wöhler (1800–1882), a German chemist.

    • 1798

    An oval bust-length portrait of Francis Lord Bacon (1561–1626), the English philosopher, lawyer, statesman, author, and scientist. Beneath is a rectangular image of a man seated on the left and standing figures on the…

  3. A mid-length portrait of Robert Hare, MD.

    • 1800

    An oval bust-length portrait of the German chemist, physicist, and biologist Franz Karl Achard (1753–1821).

    • 1950s

    Interior view of the Soap Perfume Base Department at the Norda Company plant in Boonton, New Jersey.

    • 1950s

    View of a chemist compounding a base from abyssinian civet, otto of rose from Bulgaria, and absolutes floral oil from Italy, France, and Palestine at the Norda Company plant in Boonton, New Jersey.

    • 1950s

    View of chemists checking the odor values of the fractions of the distilled oil before bulking at the Norda Company plant in Boonton, New Jersey.

    • 1950s

    View of the fractionation of an essential oil for the production of a terpeneless product in the laboratory at the Norda Company plant in Boonton, New Jersey.

    • 1950s

    View of an aromatic research chemist filtering charge into a distillation apparatus at the Norda Company plant in Boonton, New Jersey.

    • 1950s

    View of a chemist checking temperature changes on a micro-still in the laboratory at the Norda Company plant in Boonton, New Jersey.

    • 1950s

    View of an aromatic research chemist at work checking fractional distillation of an oil sample at the Norda Company plant in Boonton, New Jersey.

    • 1950s

    View of the perfume research team at work in the laboratory at the Norda Company plant in Boonton, New Jersey.

    • 1950s

    View of perfumers at work preparing and compounding test samples at the Norda Company plant in Boonton, New Jersey.

    • 1950s

    View of a master perfumer checking test samples of perfume compounds at the Norda Company plant in Boonton, New Jersey.

    • 1950s

    View of a master perfumer pouring a sample of essential oil at the Norda Company plant in Boonton, New Jersey.

    • 1950s

    View of a chemist preparing regents for analytical testing of oil samples at the Norda Company plant in Boonton, New Jersey.

    • 1950s

    View of a chemist checking the refractive index of an oil sample in a refractometer at the Norda Company plant in Boonton, New Jersey.

    • 1950s

    View of a chemist checking the specific gravity of a sample of essential oil at the Norda Company plant in Boonton, New Jersey.