Bausch & Lomb Spectroscope - Science History Institute Digital

Spectroscope is in the style of the original Bunsen-Kirchhoff design. Triangular glass prism sits on a round, brass dias and is held in place by a metal arm attached to the dias; prism is coated in black paint with only a round section of glass revealed on two sides; prism dias supported by a single pole with three feet at the base; three cylindrical tubes extend out of the prism holder; first

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