INDEX 



933 



Genotype. 826 



Geobios, 713 



Geographical distribution. 711 



Geologic time scale, 872 



Geomyidae, family of gophers, 624 



Geomys bursarius, pocket gopher, 623 



Geotropism. 77 



Gephyrea. 194. 214 



Germ cells. 104 



layers, 117 

 fate of. 118 



plasm. 104 



continuity of. 48 

 Gerrhonotus. 552 

 Gerridae, family, 318 

 Gestation, 653 

 Giant water bugs, 318 

 Giardia. 67 



lamblia. 742 

 Gibbons. 637 

 Gigantism, 655 

 Gill plate, 197 



rakers. 465 

 Giraffes. 630 

 Gizzard, 203. 204, 601 



shads. 448 

 Glands, ductless, 666 



of internal secretion, 666 

 "Glass snake," 552 

 Glenoid fossa. 495, 521 

 Globigerina, 69. 78 

 Glochidium, 2.i3. 2.54 

 Glomerulus. 398. 650 

 Glossa. 357 

 Glossarj', 905 

 Glossina, 744 



palpalis. 79 

 Glossiphonia, 214 

 Glossopharyngeal nerve, 527 

 Glottis. 492. 564, 603 

 Glucose. 56 



Glycogen, 56, .383. 387 

 Glycogenase. 388 

 Gnawers, 621 

 Goats. 630 



Rocky Mountain. 631 

 Goatsuckers, 593 

 Gobies. 454 

 Gobiidae. family. 454 

 Gobioidea. suborder, 454 

 Goiter, 668 

 Golden eagle, 590 

 Gonadotropic hormone, 670 

 Gonads, 104 

 Gonangium. 134 

 Goniatite, 2.59 

 Goniobasis. 245. 258 



comalensis. 247 

 Gonionemus. 131, 132 

 Gonotheca, 133 

 Gonozooids. 337 

 Gooseberry fruitworm, 327 

 Gophers, pocket. 621, 623 

 Gordiacea. clas«:. 175, 177 

 Gordius. 177. 178 

 Gorgonacea. order, 143 

 Gorgonia. 143 

 Gorr'onocpnhalus, 219 

 Gorilla. 637 



gorrilla. 637 

 Graafian follicles, 652, 812 

 Gracilis. 644 



muscle of frog, 523 

 Crackles, 595 

 Gmnt'a. 121. 122 

 Granulocytes, 513 

 Grass-Bison Biome. 726 

 Grasshopijcr, circulatory system, 349 

 Grasshoppers, 265, 343 

 Grassland formatlop. 72Q 

 Graylings, 448 



Grebes. 586 



Green glands, 110. 286 



Gregaloid colony, 76 



Gregarina, 72 



Gregarinida, 73 



Grew. 50 



Ground beetles, 324 



hog, 622 



squirrels, 622 

 Growtli. 54 



Gruiformes, order, 591 

 Grynophilus porphyriticus. 4S4 

 Guanin. 474 

 Guano. 597 

 Guanophores. 474 

 Guinea pigs, 622. 625 



worm, 175, 176 

 Gular fold, 562 

 Gullet. 140 

 Gulls, 591 

 Gurnards, 454 

 Gynecophoric canal, 755 

 Gyroceracoue. 2.59 



H 



Habit. 852 



Habitual behavior. 852 



Hadurus hirsutus. 298 



Haeckel, 43. 284 



Haemal arches. 405 



Haemoglobin. 196 



Haemosporidia. 73 



Hagfishes. 412 



Hags. 410 



Haliaeetus leucocephalus. 590 



Halibut. 451 



Haliclona. 121 



Haliclystus. 137 



Haliver oil. 456 



Halobios. 766 



Hamster, golden, 027 



Haploid number. 115 



Haplomai. suborder, 450 



Haplosporidia. 73 



Harelip, 6.39, 656 



Hares. 625 



Harvestmen. 266. 299 



Harvey. William. 40, 798 



Hawk. Cooper's. .589 



Hawks, 589, 590 



Heart anomalies. 664 



Heart beat, branchial. 261 



of chicken. 607 



of frog, 510, 512 



systemic. 261 

 Hectocotylized arm, 261 

 Helicina orbiculata, 258 



tropica, 240 

 Heliothis obsoleta. 326 

 Holiozoa, 69 

 Holisoma. 244 



trivolvis lentum. 238 

 Helix. 2.37 



anatomy of. 243 



circulation. 244 



excretory organs, 245 



genitalia. 246 



nervous system. 245 



reproduction and life history. 245 



respiration, 244 

 Hellbender. 484 

 Hell-diver, 5S6 

 Heloderma suspectum. 553 

 Helodermatidae. family. ,553 

 Homichordata. subphylum. 361, 362 

 Hemidactylium scutatum. 4S4 

 Hemimetabolous. 308 

 Hemi penes, 572 

 Hemiptera, order, 266, 318 

 Hemocyanin, 244, 394 



I 



