Hermetic Seal, 96

    Herschel, Sir William, 190

    Hieroglyphics, 191

    Holland, 33

    Honey, 136

    Hops, 137

    Howe, Elias, 218

    Hybla, 136

    Hydrogen, 114

    Hymettus, 136

    Ice, 15

    Idria, quicksilver mines of, 97

    India rubber, 107
      or Chinese ink, 76

    Indigo, 138

    Ink, 74
      used by the ancients, 75

    Inlaying, 132

    Insect, coral, 109-111

    Ionians, 60

    Iron, 82

    Isinglass, 132

    Islands, Volcanic, 155

    Ivory, 135

    Jaca tree, 87

    Japanese, 181

    Jetties of the Mississippi, 218

    Jupiter, 148

    Kaleidoscope, 210

    Kiln, 73

    Lace, 41

    Lapis calaminaris, 84

    Laudanum, 91

    Laws, How made, 148

    Lead, 121
      black, 122

    Leather, 72

    Legislative Powers, 147

    Lemon, 62

    Lenses, 95

    Leo the Tenth, 184

    Lesseps, Ferd. de, 217

    Levant, 75

    Libanus, Mount, 90

    Licorice, 89

    Light, 207
      Drummond, 207
      Electric, 208, 211
      Lime, 207
      Magnesium, 208

    Lightning, 17
      Rod, 215

    Lime, a fruit, 63

    Lime, an earth, 73, 112
      quick, 150

    Linen, 32

    Liquids, 197, 198

    Lithography, 131

    Loadstone, 95

    Logwood, 139

    Lombards, 170

    Lucca, 64

    Lucullus, 35

    Lungs, 89

    Lyre, 178

    McCormick, Cyrus H., 218

    Mace, 51

    Magic, 99

    Mahogany, 107

    Malt, 137

    Maltese orange, 62

    Mangoes, 85

    Manioc plant, 134

    Manna, 89, 90

    Marble, 116
      Parian, 117

    Mariners’ compass, 95

    Marine salt, 78

    Marl, 101

    Mathematics, 101

    Mead, 136

    Mechanics, 102

    Mediterranean, 171

    Megaphone, 206

    Melons, 67

    Mercury, 97
      the god, 178

    Metals, primitive, 83

    Metallurgy, 123

    Microphone, 205

    Microscope, 102

    Milan, 40

    Millet, 50

    Mineral oil, 65
      tar, 140

    Mines, 84
      coal, 81

    Mint, 166

    Mirrors, 54, 55

    Mohair, 46

    Mahomed, 72