Calendar: 1886-1887 Page 408

408 evening classes VIII -Measure of Indices of Refraction Lenses Com- position of White Light The Solar Spectrum The Oxy-hydrogen Light The Electric Light IX -Spectra of Incandescent Solids Liquids and Gases Absorption of Light Constitution of the Sun and of various Fixed Stars Heat Light and Chemical Rays of the Spectrum -Emission of Light The Origin of Colour in Bodies Optical Instruments The Eye and Vision Irra- diation XL-Transformations of Radiations Phosphorescence Change produced by Heat Fluorescence Chemi- cal Effects of Light Photography XII -Interference of Light Colours of Thin Films Newton's Rings Diffraction Diffraction Spectra XIII -Polarization of Light by Reflection by Refraction and by passing through Crystals Norremberg's Apparatus XIV -Double Refraction by Iceland Spar and other Crys- tals Rotation of Polarized Light The Sacchar- imiter Circular Polarization FresnePs Rhomb XV -Effects of Heat Pressure and Magnetism in Chang ing the Plane of Polarization Interference of Polarized Light 25 PRACTICAL PHYSICS Day and Hour of Attendance-Thursday from to The Class of Practical Physics has been arranged to enable Students to obtain an intimate personal knowledge of the methods employed in Physical Measurements and familiarity with the use of apparatus