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Adjustable liquid prism (late 19th century)

Adjustable liquid prism (late 19th century)

Hollow prism made from a cylindrical glass bottle

Hollow prism made from a cylindrical glass bottle

1900-1931
Glass prism on mahogany stand for liquids.

Glass prism on mahogany stand for liquids.

Bisulphide of carbon prism angle 60 degrees

Bisulphide of carbon prism angle 60 degrees

Direct-vision dispersing prism consisting of two glass prisms enclosing a prism-shaped space

Direct-vision dispersing prism consisting of two glass prisms enclosing a prism-shaped space

Biot type prism, in brass mount

Biot type prism, in brass mount

circa 1872
Prism with two compartments for liquids

Prism with two compartments for liquids

1876
Liquid Prism for angle of 59 1/2 º

Liquid Prism for angle of 59 1/2 º

1876
Liquid Prism for angle of 59 1/2 º

Liquid Prism for angle of 59 1/2 º

1876
Liquid Prism for angle of 60 º

Liquid Prism for angle of 60 º

1876
Selection of three liquid prisms (59 1/2 º & 60 º), consisting of prismatic glass bottles with removable glass stoppers, by E. Lutz, Paris, France, 1876.

Three Liquid Prisms

1876
Direct-vision dispersing prism consisting of two glass prisms enclosing a prism-shaped space for filling with a highly-refracting liquid

Direct-vision dispersing prism

carbon bisulphide glass prism, angle 60 degrees, by William Ladd, London, England, 1870.

carbon bisulphide glass prism

1870
Adjustable angle liquid prism with detachable glass prism by Ducretet et Lejeune of Paris, C. 1870

Adjustable angle liquid prism with detachable glass prism by Ducretet et Lejeune of Paris