598 



INDEX. 



Germinal membrane, 737, 756. 



spot, 732. 



vesicle, 732. 



Gizzard, of Birds, 200, 201 ; of Insects, 



202 ; of Bryozoa, 202; of Rotifera, 202. 



Glands, secreting, structure of, 355358. 



mesenteric, 218; lymphatic, 219. 



Glaucus, 316. 



Globules of Blood (see Blood). 

 Globulin, 232. 



Glosso-pharyngeal nerve, 459, 470. 

 Glottis, 193, 681. 

 Glow-worms, 398401. 

 Gluten of bread, composition of, 153. 

 Glycine, 364. 

 Glycocholic acid, 364. 

 Gnat, larva of, 321. 

 Goat-moth, larva of, 141. 

 Goldfinch, nest of, 704. 

 Gout, nature and cure of, 348, 349. 

 Granulation, repair of wounds by, 392. 

 Gravel, 348, 367. 

 Gregory, Dr., case of, 349. 

 Grey substance of nerves, 430, 431. 

 Guiding Sensations, importance of, 478. 

 Gymnotus, electricity of, 419 424. 



H. 



Habitual actions, 479. 



Haematin, 232. 



Hairs, structure of, 38. 



Hall, Dr. Marshall, his treatment of 

 asphyxia, 339. 



Hamster, instinct of, 699. 



Hands, use of, in prehension, 172, 173 ; in 

 locomotion, 674; structure of, 641 

 644. 



Hare, leaps of the, 661. 



Hartz forest, devastated by Insects, 147. 



Haversian canals of bone, 49, 50 ; forma- 

 tion of, 52. 



Head, definition of, 111 ; bones of, 617 

 623 ; muscles of, 624. 



Healing of wounds, 391, 392. 



Hearing, sense of, 510524; improved 

 by cultivation, 525. 



Heart, 245 ; structure of, in Man, &c., 

 256, 257 ; respiratory and systemic, 

 281; action of, 269, 270, 581, 583; 

 valves of, 272, 273 ; number of pulsa- 

 tions of, 271; development of, 753, 

 762. 



structure of, in Reptiles, 284 ; in 



Fishes, 286 ; in Mollusca, 290 ; in 

 Cephalopoda, 291; in Crustacea, 292 ; 

 in Insects, 293. 



Heat, sustainable by Animals, Introd., 

 372, 373. 



generated by Animals, 403 415 ; 



of Invertebrata, 404; of Fishes, 405; 

 of Reptiles, 406; of Birds, 407; of 

 Mammals, 407 ; of Man, 407 ; of young 

 animals, 408, 409 ; of Insects, 410, 

 411. 



Heat, animal, dependent on combustion 

 of carbon and hydrogen, 412, 413; on 

 supply of oxygen, 413 ; maintained by 

 respiration, 414; influence of nervous 

 system on, 415. 



Hemispheres of Brain, 449. 



Herbivorous animals, 144 147; nutri- 

 tion of, 162 ; teeth of, 179, 182. 



Hiccup, 341. 



Hinge-joint, 603. 



Hippuric acid, 367. 



Holothuria, 118, 119; reparative power 

 of, 389; development of, 741. 



Horse, foot of, 652 ; intelligence of, 695. 



Howling Monkeys, 684. 



Humble-bee, heat produced by, 410. 



Hunger, sense of, 140, 205. 



Hyalaea, 112. 



Hybernation, 309. 



Hydatina, multiplication of, 750. 



Hydra, 121; referred to, 131, 296, 577; 

 propagation of, by buds, 122, 726; by 

 artificial division, 122; by eggs, 123, 

 734 ; development of ovum of, 738. 



Hydrogen, combustion of, in animal body, 

 343. 



Hydropathic system, 374. 



Hydrophobia, 474. 



Hydrozoa, 124, 125; development of, 

 726, 738. 



Hyoid bone, 625, 680. 



Hysteric disorder, 474. 



I. 



Iliac bones, 645. 



Images, formation of, by lenses, 531 ; on 

 retina, 543, 544. 



Imago or perfect insect, 745. 



Immortality of the soul of man, 721, 

 722. 



Impressions on nervous system, 432,486. 



Incisor teeth, 181, 183. 



Infants, necessity of warmth to, 408, 409. 



Infusoria, 133 135; multiplication of, 

 725. 



Ink, of cuttle-fish, 359. 



Insalivation, 179, 190, 191. 



INSECTS, general characters of, 97 ; diges- 

 tive apparatus of, 202 ; circulation in, 

 293 ; respiration in, 308, 321, 322 ; repa- 

 rative powers of, 389 ; secreting appa- 

 ratus in, 358 ; luminousness of, 3U7 

 401 ; heat of, 410, 411 ; nervous system 

 of, 440446 ; instincts of, 483, 484, 667 

 716; antennae of, 498. 499; eyes of, 

 573575 ; muscular power of, 594, 662 ; 

 wings of, 670 ; production of sounds by, 

 676, 679 ; reproduction of, 745, 746. 



Instinctive actions, 692 ; predominance 

 of, in Articulata, 96 ; characters of, 

 694; examples of, 696 716; corre- 

 spondence of, with ganglia of special 

 sense, 475479; irrationality of, 709. 



