Metals unequally influenced by Heat 68 Spontaneous Combustion 69 Inequality of Heat in Fire irons 69 Expansion of Metal by Heat 69 Evaporation of a Metal 69 A Floating Metal on Fire 70 Heat and Cold from Flannel 70 Ice melted by Air 70 To hold a hot Tea-kettle on the Hand 70 Incombustible Linen 71 The Burning Circle 71 Water of different Temperatures in the same Vessel 71 Warmth of different Colours 71 Substitute for Fire 72 Gas and Steam. Laughing Gas 75 The Luminous Wand 76 To make Carbonic Acid Gas 76 Carbonic Acid Gas in Wine or Beer Vessels 76 To extinguish Flame with Gas 77 Effect of Hydrogen on the Voice 77 Magic Taper 78 The Gas Candle 78 Gas Bubbles 78 Gas-light in the day-time 79 Miniature Balloons 79 Miniature Gas-lighting 79 Musical Gas 80 Miniature Will o’-the-wisp 81 Phosphoric Illumination 81 Combustion of Iron in Oxygen Gas 81 Glow-worm in Oxygen Gas 82 Luminous Charcoal 82 Brilliant Combustion in Oxygen 82 Flame from Cold Metals 83 Phosphorus in Chlorine 83 Caoutchouc Balloons 84 To increase the Light of Coal Gas 84 Gas from Indian Rubber 84 Ether Gas 85 Magic Vapour 85 Gas from the union of Metals 85 Invisible Gases made Visible 86