394 



INDEX. 



FAGE 



Geological Names 876 



Geological Periods 876 



Geological Studies 889 



Gills of Crayfish described 269 



Gills of Fish described 298 



Glass, composition of 156 



Glucose or Grape Sugar 175 



Glyoerine, how made 178 



Glumes described 221 



Glands, how formed 252 



Glacial Period : . 862 



Glacial Climate 362, 367 



Glacier, effect on plants 362 



Glacier, the work of 363 



Glacial Striae, direction 365 



Gneiss, structure of 323 



Gold, properties of, and uses 167 



Golden Rod described 243 



Gourd Family described 242 



Gravitation or Gravity defined 19 



Gravity, laws of, shown 19 



Gravity, center of, how found 20 



Graphite, where found 127, 350 



Grass Family, extent 221 



Grass Crop, value of 223 



Grasshopper, study of 280 



Grallatores or Wading Birds 303 



Granite, composition of 322 



Gunpowder, manufacture of 149 



Gunpowder, expansive force of 152 



Gunpowder, gases of explosion 150 



Gum Resins described 172 



Gutta Perch a, properties of 173 



Gun Cotton, composition of 174 



Gum Acacia, description of 240 



Gypsum, composition of 155 



Gyncecium defined 224 



Hardness defined 32 



Harmonics or Overtones 54 



Haemoglobin described 252 



Hairs and Scales of Animals 252 



Hapalidse (monkeys) described 314 



Heart uf a Crayfish 270 



Heart of Mussel 287 



Heat and Light, Theory of 14, 27 



Heat, effects of 25 



Heat, Sensible and Latent 28 



Heat, specific standard of 29 



Heat, absorption and reflection of . . 30 

 Heat, convection and radiation of, 27, 31 

 Heat, conduction and conductors . . 28 



Heat, mechanical equivalent of 69 



Heat, sources of 27 



Heaih Fainilv described 241 



Hermaphrodite Animals 256 



Hemiptera described 281 



Hilum described 225 



Hinge Ligament 286 



Hibiscus, description of 235 



Horse Power denned 61 



Holothurians described 263 



Hornblende and Pyroxene 321 



Honey Locust described 240 



Huronian, Lower Rocks of 849 



Huronian, Upper Rocks of 350 



Hydrometer, principle of 87 



Hydraulic Press, principle of 38 



Hydrogen, how prepared Ill 



Hydroxides denned , 119 



PAGE 



Hydrochloric Acid 120 



Hydrocarbons defined 134 



Hydrogen Sulphide 141 



Hymenoptera, Bees, etc 282 



Hysenidse or Hysenas 313 



Ice, why it floats 33 



Ice Lobes or Glaciers 364 



Ice Sheet, extent of 864 



Igneous Rocks 825 



Illuminating Gas 185 



Images in a Convex Lens 80 



Images in a Curved Mirror 75 



Images in a Plane Mirror 75 



Impenetrability defined 16 



Inclined Plane, equation of 66 



Indig9 described 170, 240 



Individual, development of 880 



Indusium described 205 



Inertia defined and illustrated 19 



Infusions, how made 191 



Infusoria described 260 



Insect, fauna of 279 



Tnsecta, description of 275 



Insectivora described 312 



Insectivorous Plants 234 



Insects, diseases of 279 



Insects in winter 389 



Iodides of Mercury 125 



Iodine, properties and use 125 



Iron and Decay of Rocks 889 



Iron, Cast and Wrought 164 



Iron, compounds of 165 



Iron, distribution of 168 



Iron, reduction of 163 



Iron in Algoukian Rocks 350 



Jelly Fish described 261 



Joints in Rocks, cause of 825 



Jurassic Period, etc 358, 859 



Kinetic Energy 58 



Keweenawan Rocks 350 



Lamellibranchiata described 285 



Laughing Gas described 118 



Law as used in Science 13 



Law of Falling Bodies 44 



Laws of Radiant Heat 27 



Lava, different kinds 829 



Land, surface uneven 382 



Lakes, settling basins 846 



Laurentian Tableland 351 



Lake Erie, how formed 366 



Lever defined and illustrated 64 



Lever, principle and equation of 64 



Lever, compound equation of 65 



Lens, different kinds of 78 



Lenses, convex effect of 79 



Lenses, concave effect of 79 



Leyden Jar described 89 



Lead and its compounds 166 



Leaves, different forms of 187, 208 



Leaf, the parts of 207 



Leaves, mode of veining 207 



Leaves, form of base and apex 208 



Leaves, lobed and cleft 208 



Leaves, simple and compound 209 



