394 



INDEX 



G 



gall, 251 



gall bladder, 251 



gall flies, 69 



galls, 69 



Galton, F., 371 



ganglia, 8, 9, 88, 99-101, 118, 296 



ganglion cells, 296 



ganoids, 166 



gastric coeca, 6 



Gastropoda, 102-105 



gastrula, 336 



gavial, 181 



Geiger, J. C., 327 



genus, 17, 1 8 



geology, 341, 348, 355 



germ cells, 370 



germ plasm, continuity of, 370, 371 



germicides, 320 



gibbons, 227 



Gila monster, 180 



gill-slits, 154, 155, 159, 346, 347 



gills, 276 



of amphibians, 170 



of Amphioxus, 155 



of crayfish, 85, 86 



of cyclostomes, 157 



of fishes, 159 



of May-fly larvae, 72 



of mollusk, 98, 99, 103, 104, 



106 



gipsy moth, 28 

 gizzard, 116, 187 

 glomerulus, 278 

 glycogen, 251, 254, 255 

 Glyptodon, 215 

 Goddard, H. H., 378 

 goiter, 281 

 Goltz, F., 301 

 Gordius, 124 

 gorillas, 227, 230 

 Grantia, 139 

 grasshopper, 1-14, 17-19 



green gland, 84, 88 

 Gregarines, 148 

 Grillidae, 18, 19 

 grizzly bear, 224 



H 



Haeckel, E., 114, 155 



haemoglobin, 260, 270 



Haemosporidia, 148-150 



hag-fishes, 156, 157 



hair, 209, 284, 285 



halteres, 40 



hammer, 310 



harvest fly, 34 



hawks, 204, 205, 338 



hearing, 6, 304, 309, 310 



heart, 7, 8, 88, 100, 154, 156, 262- 



268 



hearts, of earthworms, 116, 117 

 heat spots, 305 

 hedgehogs, 209, 216 

 Helix, 103 

 Helmholtz, H., 313 

 Hemiptera, 31-39 

 heredity, 370-387 

 hermaphrodites, 334 

 hermit crabs, 40, 91, 367 

 Herrick, F. H., 191-194 

 Hessian fly, 45 

 Heteroptera, 31-34 

 hibernation, 171 

 hippopotamus, 219, 220 

 Hodge, C. F., 311 

 holophytic forms, 144 

 Holothurians, 112 

 Homarus americanus, 90 

 Hominidae, 230 

 Homo, 230, 231 

 Homo sapiens, 231 

 homologous organs, 343 

 Homoptera, 35-39 

 honey-sac, 58 

 hookworm, 123, 124 



