Calendar: 1870-1871 Page 299

298 EVENING CLASSES XIII Conduction of Heat Good and Bad Conductors Convection of Heat by Liquids and Gases Cir- culation of Liquids and Gases produced by Heat XIV Cooling of Bodies by Radiation Analogy between Radiant Heat and Light Laws of their Inten- sity Terrestrial Radiation Effect of Different Materials on Radiant Heat Transmission through Diathermanous Bodie Absorption of Heat XV Decomposition of Radiant Heat Distribution of Heat Light and Chemical Power in the Visible Spectrum Reflection of Radiant Heat from Plane and Curved Surfaces 24 MINERALOGY Bay and Hour of Attendance-Thursday from to The Course will commence with description of the Physical and Chemical characters of Minerals in General Physical -Crystallization Cleavage Fracture Frangibi- lity Hardness Lustre Colour Flexibility Double Refraction Touch Taste Odour Streak Powder Adhesion to the Tongue Magnetic and Electric Properties Phosphorescence Specific Gravity Chemical -Use of the Blowpipe Action of Acids &c The principal simple Minerals will next be separately con- sidered and the readiest mode of distinguishing them described The following is the order adopted Earthy Minerals -Rock Crystal Amethyst Cairngorm Avanturine Cat's-eye Opal Chalcedony Flint Onyx Agate Carnelian Heliotrope Jasper Hornstone Chert Garnets Idocrase Axinite Epidote Augite Hornblende Asbestos Tremolite Actinolite Felspars Zeolites Mica Talc Chlorite Calcite Fluor Selenite Barytes Strontian Salt Cryolite