INDEX 



437 



Fruits, fleshy, 51 ; 



indehiscent, 54. 

 Functions, common to all animals 

 189; 



of cotyledons, 69, 70; 



of endosperm in corn (Exp.), 73; 



of parts of a plant, 24. 

 Fungi, economic importance of, 159; 



parasitic, 164; 



poison, 163; 



sac, 166; 



shelf, 163. 

 Funiculus in pea pod, 50. 



Gall bladder, 330, 339. 

 Gamete, defined, 155. 



ametophyte, defined, 155; 



of fern, 155; 



of moss, 158. 

 Gases in Uving things, 19. 

 Gastric glands, 336. 

 Gastric juice, acid in, 337; 



action of, 336, 337. 

 Gastric mill of crayfish, 219. 

 Gastropods, 265. 

 Gastrula, formation of, 192. 

 Gemmae, 159. 

 Germinating seeds, expansive force 



of, 78. 

 Germination, 69. 

 Giant spider crab of Japan, 224. 

 Girdle, pectoral, 295, 374; 



pelvic, 295, 371, 372, 374. 

 Glands, defined, 331; 



digestive, 334, 336, 338, 339, 341 ; 



gastric, 336 ; 



intestinal, 341; 



mesenteric, 342; 



nectar, 38; 



peptic, 336; 



salivary, 334; 



sebaceous, 396; 



structure of, 331; 



sweat, 395, 396. 

 Glucose. See Grape sugar. 

 Glycogen, use of, 340; 



where formed, 340. 

 Grafting, 116. 

 Grain, 56- 



Grape .sugar, test ff)r, 21. 

 Grasshopper, lilood making in, 229, 



economic importance of, 230; 



eyes (if, 230; 



food taking in, 220; 



life history of, 230; 



mouth parts of, 229 ; 



muscular activity of. 229; 



nervous .system of, 230; 



relatives of, 2.30 

 Guard cells, 129, 130, 136. 

 Gymnosperms, 151. 



Habit, drink, 416; 



formation of, 408; 



importance of forming good, 400 

 Hair, follicle, 395; 



growth of, 395. 

 Hairs, as protection for leaves, 138. 

 Halophytes, 145. 

 Hare, wood, 308. 

 Hay infusion, animals in, 179; 



plants in, 179; 



preparation of, 179. 

 Head, regions of, 407. 

 Heart, in action, 353; 



internal structure of, 362; 



nervous control of, 359; 



position of, 351 ; 



protection of, 351; 



size of, 351 ; 



work of, 353, 365. 

 Heart muscle, 364. 

 Heart wood, 114. 

 Hcmiptera, 2 }(>. 

 Hermit crab, 223. 

 Hibernation, of animals, (note) 397; 



of butterflies, 235. 

 Hilum, 66. 



Homology, of part.*! of flower, 56. 

 Honeybee, 250, 251 ; 



food of, 252. 

 Hooks, in seed dispersal, 69. 

 Horse, geologic history of, 315; 



Osborn on, 316. 

 Horsetail fern, 166 

 House fly, a pest, 241 ; 



economic inij)ortance of, 212; 



home experimentvS with, 241. 



