GENERAL INDEX. 



861 



Somnambulism, phenomena of, iii. 72o B ; iv. 091. 

 definition, iv. 691. 

 character of the intellectual operations in somnam 



state of somnambulism passing into that of ordinary 



dreaming, iv. (591. 

 anecdotes, iv. 692. 

 exaltation of the senses when in the somnambulistic 



readln^'with which the train of thought may be 

 guided during somnambulism, by the principle < 

 suggestion, iv. 694-. 



hypnotic or mesmeric experiments, iv. b9*. 

 causes of somnambulism, iv. 695. 

 natural, iv. 695. 

 artificial, iv. 695. 



Mr. Braid's hypnotism, iv. 69o, 69f>. 70*. 

 inhalation of anaesthetic agents, productive ol a state 



resembling somnambulism, iv. 697. 

 Soo^-warts, and cancer scroll, iv. 1014. 

 Korex, or shrew, pelvis of the, s. 161. 

 Sari, or tufts, of some Algae, s. 215. 

 Soriciilie, or shrew family, ii. 994. 



S?-*' -tural arguments 



an entity totally distinct from the 

 bodv, iii. 722 Z. ., ... 



quotation from Butler's " Analogy, in. 7wf . 

 the mind considered as the mode of action ol the soul, 



iii. 72-2 Z. 



Sound, phenomena of, ii. 5fi5. ... ,., 

 analogy between sound and light, n. J>bb. 



of distinguishing the 

 direction of sound, ii. 570. 

 \Vheatstone's theory of our notions of audible 



direction, ii. 579. 



limits of audition, ii. 575. . 



media by which sounds are communicated, air, water, 



office oV the 5 different parts of the ear in the function of 



hearing, ii. 567. See HEARING, physiology ot. 

 pitch, intensity, and quality in musical sounds, 11. 5bb. 

 reflexion or" sound, ii. 566. 



echoes, phenomena of, n. 56fi. . 



variation in the limits of sensibility to sounds in dif- 

 ferent individuals, ii. 575. 

 experiments, ii. 57ft. .. 



velocity with which sound travels, 11. 500. 

 S:,und, emission of sound of muscle in action in. .,26 

 Sounds of the heart, ii, 614. See HEART, PHYSIOLOGY OF, 

 Soups, nutrition of, ii. 13. 

 Sow, ovary of the, s. 555, 556. 560. 

 Space, intercrural or interpeduncular, 111. 673. 7UJ. 

 omo-clavicular, iv. 817. 

 perforated posterior, iii. 703. 

 inter-lobular, iii. 166. 

 recto-urethral, iii. 932. 



triangular, iii. 932. 



Spalax typh'us, or mole rat, anatomy of the, iv. 369, et seq. 

 Swridee, a family of Fishes, iii. 956, etseq. 

 Sparrows, their mode of walking, in. 4&1. 

 Spasm, or cramp, iii. 720 K. 



of the glottis. See LARYNX. 

 of the muscles of the larynx, in. 123. 

 and stricture of the urethra, iii. 925. 

 of the urinary bladder, i. 403. 

 Spasmodic affections of the face, n. 229. 



of species is insured , 



ii. 444. 



nature to the promiscuous 



, MANK1NO. 



of defective vision, iv. 



1466,1467. . ,. rK 



injurious habit of wearing "preservers, iv. 1465. 

 best method of testing spectacles, iv. 1407. 



Spectra, ocular, phenomena of, iii. 723 B. 



SpeecA, power of, upon what it depends, U1.723C. bee VOICE. 



Sperm-cells, s. 4. See OVUM. 

 Spermaceti, ii. 233. . .. 



oil, chemical characters of, i. 590 ; n. 23J. 

 Spermaeonite ot lichens, s. 227. 

 Spermatic animalcules. Ses Spermatozoa. 



arteries,!. 189.220; ii. 844 ; iv. 981. 983; s. 552. 04U. 

 cord i. 4*; iv. 986. 



diffused hydrocele of the, iv. 999. 

 encysted hydrocele of the, iv. 1000. 

 hEematocele of the, iv. 1003. 



encysted, iv. 1003. 

 fascia, i. 5. 



deep, iv. 986. 



superficial or external, iv. 98G. 

 fluid, i. 127. See SEMEN. 

 nerve, external, iv. 762. 

 plexus of nerves, iv. 982 ; s. 42!). 

 process, ii. 841. 844. 

 veins, iv. 981. 1413. 



Spermatozoa, or corpnscula seminis, ii. 112. 459 ; iv. 472 ; 



s.3. 



discovery of, ii. 459. 



fanciful hypotheses respecting them, n. 4fal. 

 nature of spermatozoa, ii. 459, 400. 



Treviranus' and Baer's observations, 11. 4bO. 

 propagation of, ii. 112. 

 liquor seminis, iv. 472. 



periodical development of the spermatozoa and tes- 

 ticles, iv. 473. 

 rutting period, iv. 473. 

 form, appearance, size, and history of spermatozoa. 



ii. 111. 459 ; iv. 474. 

 in man, iv. 474. 

 in Mammalia, iv. 474. 

 in Aves, iv. 477. 

 in Keptilia, iv. 480. 

 in Pisces, iv. 483. 

 in Mollusca, iv. 484. 



in Cephalopoda, iv. 485. 

 in Gasteropoda, iv. 485. ; 

 in Acephala, iv. 487. 

 in Arliculata, iv. 488. 

 in Insecta, iv. 488. 

 in Araclmida, iv. 490. 

 in Myriapoda, iv. 492. 

 in Crustacea, iv. 493. 

 in Annelida, iv. 496. 

 in Brypzoa, iv. 497. 

 in Kotifera, iv. 498. 

 in Radiata, iv. 498. 



in Echinodermata, iv. 498. 

 in Acalepnsi and Aeanthozoa, 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. 

 existence of spermatozoa in the fluid contents ol t 

 cyst, in encysted hydrocele . of the testicle, iv. 

 998. 



chemical composition of spermatozoa, iv. 505. 

 physiological office of the semen, ii. 112; iv. o07. 

 action of the spermatozoa on the internal contents of 



the ovum, s. [137], [138]. 

 See E^TOZOA ; SEMEM. 



Sperocyclistus, a genus of Myriapoda, iii. 546, etseq. 

 Speropceus, a genus of Myriapoda, iii. 546 et seq. 

 Sperostreptus, a genus of Myriapoda, in. o4b, et seq. 

 Sphacelus, a sign of actual death, i. 807. 

 Snhteria, theca; and paraphyses of, s. 227. 

 Spha-i-obolus, a genus of Myriapoda, in. 546, et <?. 

 Sphcerothena, a genus of Myriapoda, in. 540, et seq. 

 Sphenoid bone, i. 726 ; iii. 725. 

 alse majores, i. 726,727. 

 minores.i. 726. 728. 

 articulations, i. 728. 

 body of the bone, i. 726. 

 cells, sphenoidal, i. 726. 

 definition, i. 726. 

 development, i. 728. 



in intrA. uterine life, i. 728. 

 in extra-uterine life, i. 728. 

 surfaces, anterior, i. 726. 

 posterior, i. 726. 

 under, i. 726. 

 upper, i. 726. 

 azygos process, i. 255. 

 Sphenoidal cells, i. 726. 

 Sphenoidal sinuses, iii. 725. 

 suture,!. 737. 

 ventricle, iii. 674. 

 Spheno-maxillary nerve, n.283. 

 S/i/ieno-oc apitul bone, i. 733 

 Splieno-palatine artery, i. 490 ; ill. 7od. 

 foramen, ii. 211. 

 nerves, ii. 284. 



Spheno-parietal suture, i. 7.17. 

 Spheno-temporal suture, i. 737. 



ternus, constrictor ani),i. 176; s. 369. 

 internuB vel'o'rbicularis, i. 176 ; s. 138. 369. 

 r.mark^ou'thrnervous action of the sphincteres am, 



\: 791 K. 



iii. 721 K. 

 oris muscle, i!.223. 

 e muscle, s. 



on bee- 



hives, iii. 21. 



elephant (Deilephila elpenor), n. 867. 

 lieustri, ii. 875. 



larva of, ii. 875. 877. 



ltt 



organs and mode of locomotion, in. 444. 



muscular system, iii. 539. 

 nervous system, iii. fiO'J. 

 ova of spiders, 6. [114]. 



3 K 3 



