GENERAL INDEX. 



Scutigcra livida, iii. 547. ' 



Scutigeridtr, a family of Myriapoda, iiL 516, el seq. 



cliaracters of the family, iii. 546. 

 SctUipedes of Scopoli, i. 2b6. 

 Scutula Wallrothii, si>ermagonia of, s. 230. 



pyciiidis of, s. 231. 



Scyllcea pelagica, nervous system of the, iii. 606. 

 Scyphia, a family of Porifera, iv. 65. 

 characters of the family, iv. 65. 

 Scyphits of cochlea, ii. 552. 

 Sea, phosphorescence of the, iii, 198, el seq. See LUMI- 



Noi'iNEss, AMMAL. 

 physical effects produced by a particular display of the 



fuminousness of the sea, iii. 198. 

 Sea-anemone, digestive organs of the, s. 29fi. 

 Sea-gull (Larus cyanorhynchus), nervous system of the, 



iii. 622. 

 Sea-jelly, or sea-nettle, i. 35. See ACALEPH^K. 



digestive organs of the, & 297. 

 Sea-mouse, description of the, i. 617. 



ciliary motion in the, i. 618. 



Sea-scurry, condition of the blood after death from, i. 418. 

 Sea-sicknt'sa, iv. 1174. 



Sea-urchin, ii. 30, et seq. See ECIIINODERMATA. 

 ciliary motion in the, i. 615. fi!7. See CILIA. 

 Sea-water, its absorption of the rays of light transmitted 



through it, and loss of transparency, iv. 1438. 

 Seal, common (Phoca vitulina), organs of voice of the, iv. 



1491. 



\Veberian organ in the, iv. 1418. 

 grey ,Halichcerus gryphus), dentition of the, iv. 915. 

 Seasonings of food, s. 395. See FOOD. 

 Seasons, effect of the, on the quantity of carbonic acid gas 



in the expired air, iv. 349. 

 on the production of animal heat, ii. 659. 



681. 



Sebaceous glands, i. 216. 

 of the nose, iii. 729. 

 follicles of the vulva, s. 711. 

 Sebum, i. 57. 



Second intercostal nerve, i. 217. 

 Secreting canals, ii. 487, 488. 

 SECRETION, i. 144; iv.439. 

 definition, iv. 439. 

 general observations, iv. 439. 



affinity between the functions of nutrition and se- 

 cretion, iv. 440. 



animal and vegetable secretions compared, i. 135. 

 organs of secretion, iv. 441. 



development of simple cells, iv. 441. 

 excretory organs of animals, iv. 443. 

 absorbent system, iv. 4J4. 

 biliary apparatus in various animals, iv. 445. 

 composition and development of secreting struc- 

 tures, iv. 455. 



secreting structure of the testicle, iv. 977. 

 mucous, lubricating the bladder, i. 386. 

 sources of the demand for the secreting function, iv. 



455. 



decay of animal structures, iv. 456. 

 periodical decay, iv. 456. 



carbonic acid the first product of decay, iv. 456. 

 removed from living bodies by the lungs 



and skin, iv. 456. 



water removed by the skin, iv. 456. 

 nitrogen thrown off' by decaying bodies, iv. 



4>ri. 



hydrocarbon of biliary secretion, iv. 453. 

 nature of faecal matter, iv. 458. 

 existence of the elements of secretions in the blood, iv. 



459- 



metastasis of secretion, iv. 461. 

 urine, iv. 461. 

 biliary secretion, iv. 462. 

 secretion of milk, iv. 461. 463. 



vicarious secretion of milk, iv. 463. 

 menstrual flux, iv. 463. 



vicarious menstruation, iv. 464. 

 influence of the nervous system on the secreting 



process, iv. 464. 

 on the secretion of milk, iv. 464. 



by mental emotion, iv. 464. 

 on the secretion of saliva, iv. 466. 



ga>tric juice, iv. 466. 

 tears, iv. 4o6. 



changes in the state of nutrition arising from in- 

 jured nerves, iv. 468- 



theories of the influence exerted by the nervous 

 system on the nutritive and secretory functions, 

 iv. 469. 

 three ways in which secretions are probably separated 



from the body, iii. 503. 



proximate analysis of individual secretions, iii. 807. 

 of the urine, iii. 807. 

 of the blood, iii. 809. 

 of milk, iii. 811. 

 of bile, iii. 811. 

 of saliva, iii. 812. 

 Secretions of Carnivora, i. 481. See CARNIVORA. 



follicles producing peculiar secretions, i, 481, 482. 

 of Polygastria, iv. 16. 

 of Mammalia, iii. 235. 



Seeds, dormant vitality of, iii. 156. 



Seeing. See VISION. 



Segmentation of the ovum of animals, process of, s. [138.3 



See OVUM. 



Selaginella, vegetative system of, s. 243. 

 SeUa turcica, i. 726. 

 SEMEN, ii. 457 ; iv. 472. 

 definition, iv. 472. 



histiological elements of the semen, iv. 472. 

 spermatozoa, iv. 472. 



liquor scminis, iv. 472. 



periodical development of the spermatozoa and 



testicles, iv. 473. 

 rutting period, iv. 473. 

 form, development, and history of spermatozoa, 



iv. 474; s. [137.] 

 in Man, iv. 474. 

 in Mammalia, iv. 475. 

 in Aves, iv. 477- 

 in Reptilia, iv. 480. 

 in Pisces, iv. 483. 

 in Mollusca, iv. 484. 



in Cephalopoda, iv. 485. 

 in Gasteropoda, iv. 485. 

 in Acephala, iv. 487. 

 in Articulata, iv. 488. 

 in Insecta, iv. 488. 

 in Arachnida, iv. 490. 

 in Myriapoda, iv. 492. 

 in Crustacea, iv. 493. 

 in Annelida, iv. 49ti. 

 in Bryozoa, iv. 497. 

 in Rotifera, iv. 498. 

 in Radiata, iv. 498. 



in Echinodermata, iv. 498. 



in Acalephaz and Acanthozoa, iv. 



499. 



in Infusoria, iv. 499. 

 general conclusions respecting the morphology and 



development of spermatozoa, iv. 499. 

 organisation of the spermatozoa, iv. 502. 

 motions of the spermatozoa, iv. 502. 

 chemical properties, ii. 458; iv. 505. 

 circumstances on which the fecundating property of 



the seminal fluid depends, ii. 461. 

 course of the ejaculated seminal fluid within the female 



organs, ii. 464. 

 office of the Fallopian tube in the reception and trans- 



mission of the spermatic fluid, s. 607. 

 power by which the semen reaches the oviduct, s. 



607. 

 is material contact of the semen and ovum necessary 



for fecundation ? ii. 462. 

 mode ef discharge of the semen, ii. 458, 459. 

 sources whence the semen is derived, ii. 457. 

 vesicular seminales, ii. 458. See also VESICI'LE SEMI- 



NALES. 



physiological office of the semen, iv. 507. 

 See also OVUM ; SEMEN. 

 Setnibulb, or bulb, of the vagina, s. 712. 

 Semicircular canals, ii. 530. 537. 

 ampullae, ii. 530, 531. 537. 

 horizontal, ii. 531. 

 posterior, ii. 531. 

 superior, ii. 531. 

 development of the, ii. 558. 

 function of the, ii. 569. 577. 

 process, i. 733. 

 taenia, iii. 675. 

 Semidiuma, a section of Insects of the order Lepidoptera, 



ii. 867. 



characters of the section, ii. 867. 

 Semilunar, or lunar, bone of carpus, ii. 505 ; iv. 1506. 



articulations, ii. 505. 



Semilunar cartilages of knee-joint (cartilagines falcatac, s. 

 lunatae), iii. 45. 

 nglion, ii. 298 ; s. 641, note. 

 lds, iii. 84. 



in comparative anatomy, iii. 84. 

 plica, iii. 80. 



or sigmoid valves of arteries, i. 223. 

 valves of right ventricle, ii. 581. 



of left ventricle, ii. 584. 

 Semimembranosus muscle, iv. 61 ; 8. 137. 



nerves for the, iv. 768. 

 Seminal cercariae, ii. 112. See EHTOZOA. 

 vesicles. See VESICI'LJE, SEMINALES. 

 Semi-spinalis dorsi muscle, i. 372. 

 Semi-tendinosus muscle, ii. 264 ; iv. 61 ; s. 137. 



nerve for, iv. 767. 



Semitic, or Syro- Arabian, group of languages, iv. 1347. 

 characters of the Semitic nations, iv. 1347. 



complexion of the, iv. 1333. See VARIETIES OP 



MANKIND. 

 Semnocebus, a genus of Quadrumana, iv. 215, ft seq. See 



QUAORUMANA. 



characters of the genus, iv. 215. 

 Semnopithecus, a genus of Ouadrumana, iv. 195, et seq. 



See Qi APRI MANA. 

 characters of the genus, iv. 195. 

 Semnopithecus, digestive organs of the, s. 304. 

 Senegal, characters of the inhabitants of, iv. 1352, 1353. 



gan 

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