478 



INDEX 



Hydrogen in soil, 275 



peroxide, 50 



sulphide, 106 

 Hydrophobia, 449 

 Hydroxides, 192 

 Hygiene, 426 

 Hypocotyl, 285 



Ice, 83, 84 



box, 64 



Igneous rocks, 262, 263 

 Illuminating gas, 116, 225 

 Image. 151, 157, 415 

 Incandescent mantles, 225 

 Inch, 7 



Incidence, angle of, 156 

 Inclined plane, 174, 180 

 Induction, 127, 132 

 Inertia, 26 

 Infection, 429 

 Ink stains, 204 

 Inoculation, 445 

 Insects, 322 

 Inspiration, 381 

 Insulation, 228 

 Insulators, 131 

 Intestines, 357 

 Iris, 417 

 Iron, 50, 265 



in soil, 275 



rust, 204 



salts, tests for, 195 

 Irrigation, 43, 273 

 Isobars, 251 

 Isotherm, 255 



Joints, 341 



Keramics, 260 

 Kerosene, 115 



lamps, 224 



stoves, 213 

 Kidneys, 366, 379 

 Kilowatt, 229 

 Kindling, a fire, 210 



temperature, 68 

 Kite, 184 



Lachrymal glands, 417 

 Lacteal glands, 358 



Lactic acid, 116, 189 

 Lampblack, 112 

 Lamps, kerosene, 224 

 Land plaster, 278 

 Larynx, 383, 381 

 Laundry, 197 

 Lavoisier, 46 

 Lava, 261 

 Law of winds, 245 

 Lead, 190, 209 

 Leaves, 285, 286, 288 



work of, 287 

 Legumen, 348 

 Lens, 159, 416 

 Lever, 174, 176, 177, 345 

 Levulose, 349 

 Ley den jar, 133 

 Lichens, 304 

 Liebig's condenser, 80 

 Ligaments, 341, 345, 418 

 Light, 141, 151, 159,429,453 



in the house, 221 



intensity of, 153 



waves, 9 

 Lighting, acetylene for, 227 



artificial, 223 



electric, 228 



gas for, 224 

 Lightning, 134 

 Light-year, 10 

 Lime, in soil, 279 



kiln, 123 



slaked, 192 

 Limewater, 51, 118 

 Limestone, 121, 259, 261, 340 



in soil, 279 

 Linen, 201, 307 

 Linseed oil, 203 

 Liquefying of gases, 68 

 Liquid air, 56 

 Liquids, 66 

 Liquid, surface of, 29 



ammonia, 84 

 Liter, 9 

 Litmus, 190 

 Liver, 357, 358 

 Lizard, 329 

 Loam, 269 

 Lobster, 321 



