The Impossible Omelet 147 Go if you can 147 The Figure Puzzle 147 The Visible Invisible 147 The Double Meaning 148 Quite tired out 148 Something out of the Common 148 To rub one Sixpence into two 149 Magic Circle 149 Melange. Illusions of Touch 153 Illusion of the Taste 154 The General Bleacher 154 Influence of coloured Glass on bulbous Roots 155 The Spinning-top “asleep” 155 To judge of Weights 156 Quicksilver and Oil united 156 To dissolve the Soda in Glass 156 Waterproof Paper 157 To Dissolve Gold or Platinum 157 Colder than Ice 157 Contra-crystallization 157 One and one do not make two 158 To copy Writing instantly 158 The Rival Dials 158 To spin Indian Rubber 158 Indelible Writing 159 Vegetable Anatomy 159 To tell what o’Clock it is by the Moon 160 The Physiognotype 161 Infinite Divisibility of Matter 161 Holding the Breath 162 Sand in the Hour-Glass 162 Resistance of Sand 163 Glass broken by Sand 164 To bleach Ivory 164 Vanishing Shells 164 The Magic Egg 164 The Magic Whirlpool 165 Magic Porcelain 167 A Galvanic Tongue 168 Drinking Porter out of Pewter 168 Electric or Galvanic Preservation 168