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Liquid Prism By Jules Duboscq

£1850
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Liquid Prism By Jules Duboscq Liquid Prism By Jules Duboscq Liquid Prism By Jules Duboscq Liquid Prism By Jules Duboscq Liquid Prism By Jules Duboscq Liquid Prism By Jules Duboscq Liquid Prism By Jules Duboscq Liquid Prism By Jules Duboscq Liquid Prism By Jules Duboscq Liquid Prism By Jules Duboscq Liquid Prism By Jules Duboscq Liquid Prism By Jules Duboscq Liquid Prism By Jules Duboscq Liquid Prism By Jules Duboscq Liquid Prism By Jules Duboscq

Liquid Prism By Jules Duboscq

£1850

A large brass liquid prism by Jules Duboscq, used to measure the optical dispersion of liquids. France, circa 1870.

Brass and steel stand.

Adjustable height and rotating trapezium shaped prism holder, enclosing a glass vessel for the liquid, with cap. Height in photograph: 62 cm.

The parallel sides are 23.5 cm and 12 cm. The angled sides are 14 cm.

Signed: Jules Duboscq à Paris

Stamped to the prism holder and stand: U.B C.G

Weight: 7 kilos – 15.3 lbs.

For a similar prism by Duboscq see: Nineteenth-century Scientific Instruments, Gerard L'Estrange Turner, 1983. Page 149.

Louis Jules Duboscq (March 5, 1817 – September 24, 1886). Traded at rue de l’Odeon 35 (1851) & 21 rue de l’Odeon (1859-85), Paris, France. Apprenticed to Jean-Baptist Soleil (1778 – 1878) in his workshop, 1834 taking over business in 1849. Formed a partnership with Ph. Pellin in 1883.