642 



INDEX. 



Diffusion of influence in granular nerve ma- 

 terial, 268. 



DIGESTION, nature of, 16, 40, 52, 63 ; object of, 

 61,66; histogenetic, 63 ; calorifacient, 63 ; 

 is mechanical and chemical, 57 ; double, 

 46 ; processes of, as insalivation, 40, 46 ; 

 deglutition, 46 ; passage into duodenum, 

 52, 67 ; passage along intestine, 67. 



Digestion, artificial, 52, 54. 



Digestion of gum, 71 ; of cellulose, 71 ; of 

 starch, 72 ; of sugar, 72 ; of fat, 76 ; intes- 

 tinal and stomach, contrasted, 81. 



Digestive tract, divisions of, 48 ; of insect, 

 58 ; of various animals, 59 ; juices, their or- 

 ganic ingredient, 77 ; power injured by sal- 

 iva, 50. 



Discs of muscular fasciculi, 436 ; of blood, 

 see Cells. 



Discus proligerus, 520. 



Distribution, vertical, of plants, 473 ; of heat, 

 473. 



Diurnal amount of air used, 166. 



Diurnal variations of heat, 178. 



Donne on saliva, 44. 



D'Orbigny on Inca Indians, 487. 



Dormouse, stomach of, 59. 



Dorsal cord, 293 ; lamina, 527. 



Double trains of thought, 329. 



Doubleness of brain, 327. 



Dowler's experiments, 444. 



Draper, J. C., on respiration, 168, 239 ; on 

 urea, 220. 



Dreaming, 555. 



Drowning, restoration from, 133. 



Drum of ear, 364. 



Duality of mind, 329. 



Duct, thoracic, 90. . 



Ductless glands, 211. 



Ducts, dotted, 498. 



Dufay, law of, 104. 



Dugong, heart of, 136. 



Dulong on animal heat, 182. 



Dumas on fat, 248. 



Dutrochet on endosmosis, 106. 



Dyslysin, 83. 



Dytiscus, 438. 



E. 



EAR, structure of, 376 ; external, 360 ; action 



of, 359 ; auditory nerve of, 368 ; labyrinth 



of, 375 ; tympanum of, 365. 

 Education, effect of, 330, 543. . 

 Edwards, Milne, on crustaceans, 488 : on fat, 



248. 



Egg, development of bird from, 35. 

 Egypt, 613, 614. 

 Elasticity, heat of, 185. 

 Elective filtration, 196. 

 Electrical tastes, 430 ; currents in muscles, 



443 ; conductors, nerves resemble, 266. 

 Electricity, 275. 

 Eleventh pair, 342. 

 Elixir of life, 633. 

 Elliptical skull, 586. 

 EMBRYO, 538 ; germinal membrane of, 525 ; 



vertebral column of, 532 ; vascular area of, 



527 ; allantois, 538 ; circulation, 531 ; in- 

 fluence of mother, 534 ; size and weight of, 

 at birth, 540, 541 j viability of, 545. 



Embryonic development of brain, 313 ; of 

 circulating apparatus, 531 ; forms, 507. 



Emergence of impressions from brain, 408. 



Emotions, mental, 290. 



Empiricism, extinction of, 25. 



Endocardium, 137. 



Endochrome, 493. 



Endogenous generation, 496. 



Endosmosis, 105, 107, 131 ; through films, 

 154 ; through stucco, 107 ; force of, 107, 

 153. 



Enteric juice, 369. 



Epencephalon, 292, 528. 



Epidermis, 233 ; functions, 234. 



Epithelium, 197, 234 ; cylindric, tesselated, 

 ciliated, 197. 



Epochs of globe, 481 ; of life, 547. 



Equilibrium, conditions of, 10, 22, 560. 



Erect vision, 396. 



Esquimaux, 568. 



Europe, primitive state of, 613. 



European history, 610. 



Eustachian tube, 367. 



Euthanasia, 561. 



Evaporation, 185. 



Excretion, 213. 



Exhalation by lungs, 21, 22. 



Exosmosis, 106, 131. 



Expectoration, 47. 



Explosive consonants, 357. 



Extinction of Indians, 600. 



Extinctions, 484, 488. 



EYE, structure of, 382 ; nervous mechanism 

 of, 389, 394 ; accessary apparatus of, 399. 



Eyeball, motions of, 401. 



Eyebrows, 399. 



Eyelids, 399. 



F. 



FABRICIUS AB AQUAPENDENTE on veins, 130. 



Faeces, 83. 



Fair races, disappearance of, 591, 636. 



Falling, sensation of, 559. 



Fasciculi of muscle, 433, 436 ; digestion of, 

 54. 



FAT, 246 ; oxidizes gradually, 252 ; relation 

 of, to bile, 207 ; to nitrogenized tissue, 250 ; 

 in articles of forage, 229 ; emulsifying of, 

 71 ; produced from carbohydrates, 81 ; in- 

 troduction into villi, 91 ; saponification of, 

 93. 



Faunal groups, 568. 



Feeling and touching, distinction between, 

 422. 



Female and male compared, 546. 



Fenestra ovalis and rotunda, 361. 



Ferments, 45, 80. 



Feudal system, 631. 



FIBRIN, 30, 93, 97, 114; loss of, 52; vegeta- 

 ble, 33 ; not an effete body, 98 ; organiza- 

 tion, 113; difference of, in blood and mus~ 

 cle, 114; variations in quantity, 122. 



Fifth pair of nerves, 334. 



