826 



INDEX 



Flukes — (Continued) 



intestinal, 512, 513 



liver, 498, 509, 513 



lung, 512 



salmon-poisoning, 511 

 Fluorine, 174 

 Folic acid, 171 

 Follicle, ovarian, 345, 347, 349, 351, 352, 



709, 710, 746 

 Food web, 52, 87, 88, 89, 90 

 Foramen magnum, 693, 705 

 Foramen of Munro, 706 

 Foraminifera, 426, 427, 437, 442, 443 

 Forebrain, 302, 305, 372, 373 

 Foregut, 605 

 Fovea, 324, 328, 330 

 Franklin, B.. 789 

 Freemartin, 338, 339 

 Friedman pregnancy test, 383 

 Frisch, K., 618-621 

 Frog, 3, 80, 666, 681, 685-712 



body cavities, 694, 695 



development, 367, 371, 372, 374 



ecology and life history. 687 



egg after fertilization, 367, 369 



folklore, 711, 712 



food, 688 



hearing, 708 



parasites and diseases, 689 



secondary sex characters, 689 



skeleton, 692-694 



skin, 691, 692 



systems, position of, 697 



voice, 703 

 Frontal sinus, 270 

 Fruit, 65 

 Fucus, 56 



Gall bladder. 189, 190, 256, 697 



Gallstones, 190. 191 



Galvani, L., 9 



Gamete, 43, 46, 335, 443 



Ganglion, 284, 285, 293, 297 



Gannets, 68 



Gases, 19-21, 28, 224, 225 



Gastric juice, 186 



Gastrin, 186, 267, 268 



Gastrodermis, 466, 474, 475, 478 



Gastroliths, 581, 585, 586 



Gastropoda, 631, 633, 634, 643, 798 



Gastrotricha, 543, 544, 797 



Gastrula, 365, 366, 369, 372, 477, 659 



Gastrulation, 365, 366, 368 



Gecko, 718 



Geese, flying, 730 



walking, 741 

 Geiger-Muller counter, 19 

 Gel, 21, 22, 26-28, 139 

 Gemmules, 461, 462, 547 



Genes, 38, 39, 43, 368, 389, 393. 395, 397, 

 399-408, 412, 414, 417, 787, 792 



arrangement on chromosomes, 403 



linked, 402 



sex-influenced, 406, 407 



sex-linked, 406 

 Genetics. 388, 389, 392, 415 

 Genotype. 392 

 Genus, 795 



Geococcyx californiciis, Til 

 Germinal epithelium, 344 

 Gestation, 347 



Giants, 257, 258, 272, 273, 274 

 Giardia intestinalis, 429 

 Gibbon, 754, 770 

 Gila monster, 714, 719 

 Gill arches, 375, 786 

 Gill clefts, 375, 662, 666 

 Gills, 574, 674, 683 



circulation in fish, 675 



clam. 638 



snail, 643 

 Gizzard, 605. 606, 743 

 Glands, endocrine, 4, 32, 256-259, 275- 

 278, 703 



mammary. 129, 752 



mucus, 690. 691 



oil, 129, 157, 743 



poison, 690, 691, 722 



sebaceous, 131 



sweat, 129, 134, 252 



tear. 129 

 Globe fish, 670 

 Globigerina hulloides, 73, 443 

 Globulin, 198 

 Glochidia. 641, 642 

 Glomerulus, 246, 248. 249, 252, 253 

 Glossiplionio complanata, 570 

 Glottis, 697, 703 " 

 Glucose, 29, 57, 163, 169, 170, 187, 193, 



198, 199, 265, 268, 343 

 Glue cells, 494-496 

 Glycerin, 170, 191 

 Glycerol, 170, 187, 191 

 Glycine, 169 

 Glycogen, 29, 30, 57, 159. 169, 198, 268, 



689, 697 

 Goblet cell, 192 

 Goiter, 259, 260-262 

 Golgi bodies, 33, 36 

 Gonads, 333 

 Gonionemus, 478, 481 



nuirhachi, 482 



plicifera, 5 1 1 

 Gonyaiilax polvhedra, 434, 435 

 Gordius, 530, 531 

 Gorilla, 770, 771, 772 

 Graafian follicle, 344 

 Grammatophora, 728 

 Granulocytes, 202, 205. 207 

 Grasshopper, 3, 599, 602, 605-612 



