Supplementary set to the Kroenke optics basic set (1009932 resp 1009931) for carrying out student experiments on the polarisation of light waves. Such as: Polarization of transverse waves. Polarizer and analyser. Visibility of polarized light in turbid water. Double refraction. Rotation of planes of polarisation by a sugar solution. Contents: 1 Pair of polarizing filters. 1 Pinhole aperture, 10 mm. 1 Rectangular cuvette.