Max Kohl Demonstration Weinhold Goniometer
This demonstration goniometer is massively built. This was used for experiments involving reflection and refraction, as well as spectral observations. The angles of prisms could be determined and the refractive index could be found through a variety of methods. The telescope, collimator, and prism platform can rotate through 360 degrees. The scale is divided into 1 degree intervals. A leather covered box holds various accessories . The table can also be tilted vertically.
A picture of the goniometer from the 1912 Kohl catalog.
"Max Kohl, Chemnitz."



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