542 



NATURE-STUDY 



Four-o'clock, 341. 



Fox, 415. 



Freezing, plants, buds, 312. 



Frog, 150. 152. 409, 417; eggs, 152; 



tadpoles, 156. 

 Fruit, 120, 352, 405, 433. 474, 49°, 



Chap. XX. 

 Fruit garden, 278. 

 Fungi, 367, 368, 392, 476, 492. 

 Funnel-web spider, 248. 

 Fur-bearers, 79, 407, 432. 



Game, big, 461. 



Game birds, 134, 440. 



Game laws, 136, 441. 



Gardening, 18, 259; school, 258, 



Chap. XX; window, 283. 

 Garter-snake, 161. 

 Generalization, 28, 41. 

 Geography and nature-study, 55. 

 Geotropism, 339. 

 Germination, 299, 423, 465, Chap. 



XX. 

 Germinators, 300. 

 Giant silkworm, 240. 

 Girdle-scars, 313. 

 Glacial deposits, 468. 

 Goldfish, 168, 174, 407. 

 Goose, 115, 117, 123, 415, 440. 

 Gossamers, 248. 

 Grafting, 288. 

 Granite, 437. 

 Grass, 309, 353, 460. 

 Grasshopper, common, 184, 222, 



429; green, 234. 

 Grebe, 115. 

 Greenhouse, 283. 

 Grouse, 104, 108, 119, 120. 

 Guano, 124. 

 Gulls, 103. 



Hair-snake, 223. 



Harmful birds, 145; snakes, 149; 

 insects, 211; plants, see Weeds, 

 poisonous plants, fungi, and bac- 

 teria. 



Harvest, 418. 



Hawk, 100, III, 119, 124, 126, 128, 



439- 

 Hawk-moth, 240. 



Heat, Chap. XX. 



Hemiplera, 194. 



Herbarium, 338. 



Herring, 173. 



Hibernation, 442; frogs, 155; toad, 



159; snakes, 162; turtle, 163; 



cocoons, 197; flies, 205; plants, 312. 

 Hive, observation, 210. 

 Honey, 206. 

 Horned toad, 161. 

 Horse, 421. 

 Hotbed, 276. 

 Humming-bird, 103, 107, no, 113, 



122. 

 Hybrids, 330. 



Hydra, 256. ' 



Hygiene, Chap. XX. 

 Hymenoptera, 205. 



Ichneumon-fly, 228. 



Illustrative material, 25, 33. 



Imagination in nature-study, 11. 



Induction, 11. 



Industrial topics, Chap. XX. 



Informal nature lessons, 21. 



Insecticides, 294, Chap. XIV. 



Insects, aquatic, 191, 430; bees, 

 205; beetles, 199; beneficial, 205, 

 224, 230; bugs, 192; butterfly, 

 cabbage, 194, monarch, 197; but- 

 terflies, frontispiece, 236; cocoon, 

 201; collecting, 176; dragon-fly, 

 189; flies, 203, 459; harmful, 211, 

 221, 430; insects and birds, 121, 

 126,175; insects and flowers, 326; 

 killing, 180; lessons. Chap. XX; 

 locust, 184; moths, 198; mount- 

 ing, 181, 489; net, 80; parasites, 

 227; protective adaptation, 243; 

 spreading, 182; structure, types, 

 184; where found, 176. 



Instinct for nature in children, 16. 



Inventions, 454, 469. 



Iodine test, 316, 462. 



lo moth, 241. 



Iron, 453. 



Jack-in-the-pulpit, 309. 

 June beetle, 200. 

 June grass, 309. 



