Liquid Prism for angle of 59 1/2 º
1876
Liquid Prism for angle of 59 1/2 º
1876
Liquid Prism for angle of 60 º
1876
Bisulphide of carbon prism angle 60 degrees
Adjustable liquid prism (late 19th century)
Direct-vision dispersing prism consisting of two glass prisms enclosing a prism-shaped space
Hollow prism made from a cylindrical glass bottle
1900-1931
Prism with two compartments for liquids
1876
Glass prism on mahogany stand for liquids.
Biot type prism, in brass mount
circa 1872
Three Liquid Prisms
1876
Direct-vision dispersing prism
Adjustable angle liquid prism with detachable glass prism by Ducretet et Lejeune of Paris
carbon bisulphide glass prism
1870