772 



GENERAL INDEX. 



Diet and regimen, effect of, on the evolution of animal lie it, 



ii. 682. 

 Dietaries, observations on, s. 396. 



quantity of food required per diem, s. 397. 

 Digastric muscle, iii. 105. 563. 



action and relations, iii. 563, 564. 

 nerve, iii. 949 ; iv. 547. 

 space, iii. 564. 570. 581. 



anterior division, iii. 581. 

 posterior division, iii 581. 

 sulcus, i. 734. 

 DIGESTION, ii. 6. 

 definition, ii. 6. 



I. description of the organs of digestion, ii. 7. 

 mouth, with its appendages, ii. 8. 

 lips, ii. 8. 



salivary glands, ii. 8. 

 teeth, ii. 8. 



oesophagus and deglutition, ii. 8. 

 stomach and intestinal canal, ii. 9, 10. 



movements of the stomach at the commence- 

 ment of, s. 312. 



a. when a large quantity of fond is hastily 



swallowed without mastication, s. 312. 



b. wht-n a small quantity of liquid food is 



taken, s.312. 



c. when in the ordinary state of moderate 



distension, with food properly prepared 

 by mastication, s. 313. 

 movements of the stomach in the later stages 



of digestion, s. 314 

 changes in the stomach during digestion, s. 



328. 

 gastric juice, s. 328. 



physical properties, s. 329. 

 specific gravity, s. 329. 

 quantity, s. 330. 

 chemical composition, s. 330. 

 action, s. 333. 



process of secretion, s. 337. 

 changes in thevilli of the intestine during di- 

 gestion, s. 355. 

 theories of the process of stomach digestion, 



s. 336, 337. 



peculiarities of the digestive organs in different 

 classes of animals, ii. 11. 



II. nature of the substances usually employed as food, 



ii. 12. 

 animal compounds, ii. 13. 



eggs, fish, flesh, milk, and soups, ii. 13. 

 condiments, sahs and spices, ii. 15. 

 liquids, ii. 14, 15. 

 medicaments, ii. 15. 

 vegetable substances, ii. 13. 



farina and gluten, ii. 13. 



III. changes which the food experiences in the process 



of digestion, ii. 15 ; iii. 743. 

 chyme, properties of, ii. 1C. 



process of chymification, ii. 16.25. 

 chyle, analysis ol, ii. 19. 20. 



process of chylification, ii. 19. 25 ; iii. 745. 

 gastric juice, physical and chemical properties of, 

 ii. 17. 



IV. theory of digestion, ii. 21. 



hypothesis of chemical solution, ii. 22. 

 fermentation, ii. 22. 

 nervous energy, ii. 23. 

 trituration, ii. 22. 

 vital principle, ii. 23. 



V. affections peculiar to, or dependent upon, the 



functions of the digestive organs, ii.25. 

 hunger, ii. 25. 

 nausea, ii. 26. 

 thirst, ii. '25. 



relations of digestion to nutrition generally, s. 397. 

 prehension, s. 397. 

 mastication and insalivation, s. 397. 

 deglutition, s. 39s. 

 gastric digestion, s. 398. 

 intestinal digestion, s. 398. 



the bile, s. 399. 

 f fleets of the lesion of the vagi upon the function of, 



iii. 900. 

 effects of digestion on the quantity of carbonic acid g.is 



in the expired air, iv. 346. 

 organs of digestion in infancy, i. 67. 

 condition of the powers of, in hibernating animals, ii. 



768. 



See also NUTRITION. 



animal and veget-ible digestion compared, i. 132. 

 DIGESTIVE CANAL (in comparative anatomy), ii. 27. 



See the various classes of Animals, under their head- 

 ings. 

 Digital arteries, iv. 2'26. 1407. 



cavity, or fossa trochanterica, ii. 16G ; iii. 674. 

 nerves, iii. 904. 

 first, iv. 757. 

 second, iv. 757. 

 third, iv. 757. 

 fourth, iv. 757. 

 fifth, iv. 757. 

 terminal, iv. 757. 



Digitalis, action of, on the vital power of the heart, i. 723. 



797 



Digit! pedis, toe bones, ii. 342. 

 l)ii>li-a, a genus of Kotifera, iv. 404. 

 Diglena lacnstris, digestive organs of the, s. 2!>5. 

 Dilatation of the cavities of the heart, ii. 640. 

 of the orifices of the heart, ii. 640. 

 of the valves of the heart, ii. 647. 

 of arteries, i. 235. 

 Dilator narium anterior muscle, iii. 729. 



posterior, iii. 729. 

 Dimensions of objects, power of judging correctly of the, 



at a distance, iv. 1446. 

 instance of Napoleon Bonaparte, iv. 144'). 

 Dtmyaria, i. 695. See CUNCHIFEKA. 

 Dingo, or wild dog of Australasia, iii. 257, note : iv. 1305. 



1307. 



Dinobryna, a family of Polyg.istric Animals, iv. 4. 

 Dinocharis, a genus of Rot'ilera, iv. 40G. 



paupera, iv. 412. 

 Dinornis, pelvis of the, s. 168. 

 Dinntheriiim, anatomy of the. See PACHYDERMATA. 



teeth of the, iv. 931. 

 Diadems, mode of progression of the, iii. 437. 



teeth of, iii. 980. 



Dioecious reproduction, or generation with d'stinct indi- 

 viduals of different sexes, ii. 435. See GENERATION. 

 Diitptric phenomena, iv. 1440. 

 Diphtherite of M. Bretonneau, iii. 117. 

 symptoms and appearances of, iii. 117. 

 sloughing, iii. 118. 



differences between it and croup, iii. 118. 

 diphtheritic deposit, iv. 118. 

 white thrush, iv. 118. 

 white cheesy substance, which forms on blistered 



surfaces, iv. 118. 

 Di liytia ( Acalepha?), i. 36. 

 ljil>!ii/i's campanulifera, i. 38. 

 Di/ilue, condition of, in erysipelas, i. 745. 

 DII-LOGENESIS, i. 509. 

 Diploic plexuses of vein?, iv. 1388. 

 Dtplostomum volvens, an Entozoon infesting the eyes of 



animals, ii. 121, 122. 132. 

 organs ot digestion of the, s. 296. 

 Diplozoon paradoxum, ii. 132. 



mode of reproduction of the, s. 32. 

 Diplcra, an order of Insecta, ii. 867. 

 characters of the order, ii. 867. 

 families, ii. 867. 

 wings of the, iii. 423. 



powers of flight of the, iii. 423. 

 ovum and micropyle of, s. [112]. 



Dipvs hersipes, or jerboa, anatomy of the, iv. 369, et seq. 

 Direction, sense of, of some animals, iv. 702. 

 Disarticulations of hand, ii. 529. 

 Discoboli, a family of Fishes, iii. 957. 

 Discimiycetes, reproductive system of the, s. 226. 

 Dislocations of the several joints. See under the heading 



of each. 



Disuma, or double-bodied animalcule, iv. 12. 

 Dissection, microscopic, iii. 346. 



best means for carrying on dissections under a magnify- 

 ing power, iii. 346. 

 instruments for microscopic dissection, iii. 346. 



Swammerdam's implements, iii. 347. 

 compressoi ium, iii. 347. 

 Dissection of urethra, Iii. 926. See URETHRA. 



effects of wounds received in, i. 362. 

 Distemma, a genus of Kotifera, iv. 404. 

 Disloma (flukes), doubtful existence of muscle and nerve 



in the, iii. 534. 



digestive organs of the, s. 29G. 

 mode of reproduction of, s. 30. 

 armatum, a parasitic worm, ii. 127. 

 clavatum, ii. 126. 12S. 132. 

 denticulatum, ii. 127. 

 lerox, ii. 127. 

 hepaticum (or liver-fluke), description of the. ii. 12. 



132. 



in veins, iv. 1402. 

 nervous system of the, iii. 607. 

 hians, development of the young of, ii. 143. 

 perlatum, a parasitic worm, ii. 127. 



generative organs of, ii. 138. 

 spinulosa, a parasitic worm, ii. 127. 

 trigonocephalum, a parasitic worm, ii. 127. 

 Di.ttOHtus, a genus ol Tunicata, iv. 1190, et seq. 



characters of the genus, iv. 1190. 

 Diurna, day-fliers or butterflies, a section of Insects of the 



order Lepidoptera, ii. 866. 

 characters of the section, ii. 866. 



Diversities of mankind, iv. 1315. See VARIETIES OF MAN- 

 KIND. 



Diverticula of intestinal canal, s. 404. 

 Divmg-be\\, distressing tension of the tympanum when in 



the, ii. 575. 



relief obtained by the act of swallowing, ii. 575. 

 of the water spider, iii. 9. 

 Dodo (Didus ineptus), account of the, i. 269. 

 Dog, brain of the, iii. 096. 



actions of, in which short processes of reasoning seem 

 to have been concerned, iii. 22. 



