INDEX 



469 



Gonads, 195, 203, 206, 260, 261 



Gonostyle, 259 



Gonotheca, 259, 260 



Graafian follicle, 200, 207 



Graham, 424 



Grape sugar, 78 



Graviotropism, 372, 373 



Great Barrier Reef, 103 



Greek Biology, 421 



Green gland, 18^ 



Green plant, 41, 153 



Grew, 422 



Growth, 5, 21, 53, 63, 204, 271, 289, 



290, 291-303 

 Gullet, 6^, 66 

 Gustatory sense, 223 



Haeckel, 411 



Haemocyan, 173 



Haemoglobin, 174-176 



Hemophilia, 175, 333, 338 



Hagfishes, 118 



Hands, 122 



Hapalidae, 122 



Haploid, 309 



Harelip, 287 



Harvey, 422 



Haversian canals, 148 



Head, 114, 140 



Heart, 137, 153, 173, 178, 179. 180. 



181. 182 

 Heart beat, 178, 181-183, 238 

 Heart muscle, 181, 182 

 Heat, 17, 190-192 

 Hedge hog, 121 

 Hemiptera, 338, 359 

 Hemochordata, 125 

 Hepatic portal vein, 165 

 Heredity, 304-346 

 Hermaphrodites, 195 

 Hessian fly, 262 

 Heterogamy, 251 

 Heterospory, 257 

 Heterotrichia, 64 

 Heterozygous, 324 

 Hibernation, 192 

 Histology, 416 

 Hog cholera, 85 



Holophytic nutrition, 42, 88, 291 



Holothuroidea, 109 



Holotrichia, 64 



Holozoic nutrition, 43, 71, 153 



Homing instinct, 376 



Hominidae, 122 



Homo neanderthaler , 122, 406 



Homo sapiens, 54, 122, 406 



Homoiothermal animals, 191, 374 



Homologous chromosomes, 309 



Homology, 140, i86 



Homozygous, 325 



Honey bee, 361, 385 



Hoof, 407 



Hooke, 422 



Hookworm, 106, 433 



Hormones, 203-208 



Horse, 123, 166, 406, 407 



Host, 72, 74, 76 



House fly, 113, 124, 361 



Human ancestry, 404-406 



Human architectural plan, 152 



Human arm, 33 



Human balancing organ, 230, 232, 233 



Human behavior, 371, 377, 426 



Human Biology, 3 



Human blood, 37, 86, 174-IJ6 



Human body temperature, 1 90-1 91 



Human brain, 33, 60, 2/9 



Human cells, osmotic pressure, 37 



Human central nervous system, 216, 217 



Human chromosomes, 309 



Human ccelom, 136, 137, 152 



Human congenital defects, 287 



Human cranial nerves, 223 



Human defense mechanisms, 355 



Human digestion, table of, 163 



Human digestive system, i ^g, 160, 161 



Human ear, 230. 231, 232, 233 



Human embryo, 272, 280, 281 



Human eye, 226, 227 



Human fcetus, 280 



Human food chain, 380, 381 



Human form development, 284 



Human growth, 290 



Human head, 140 



Human heart, 180, 181, 182, 238 



