858 



GENERAL INDEX. 



Sigmoitl cavity, great, ii. 66. 162. 



lesser, ii. 66. 

 of the ulna, iv. 229. 

 flexure, s. 362. 365. 



use of, s. 366. 

 notch, ii. 214. 

 valves, ii. 581. 



of arteries, i. 223. 

 S/7/c-vessels, or salivary glands, of the larva? of insects, ii. 



973. 



Silkworm moths (Bombycidsel, ii. 867. 

 Silk -worms (Liparis mori), ii. 867. 87-1. 

 Siluridte, a family of Fishes, iii. 957. 

 Silurus electricus of Linnaeus. See Mulaptcrvnit electri- 



cus. 

 Simla (ape), a genus of Ouadrumana, iv. 10.5, et seq. See 



QUADRUMANA. 

 characters of, iv 195. 

 Simla satyrus (ourang-cetan), anatomy of the, iv. 198, et 



seq 

 troglodytes (chimpanzee), anatomy of the, iv. 11)8, 



e t seq. 



pelvis of the, s. 151. 

 Singing, art of. iv. U85. 

 Sinuositas mastoidea, s. sinus mammillaris, s. antrum 



mammillare, ii. 546. 559. 

 Sinus or Sinuses : 



of acetabulum, ii. 777- 

 ampullaceus, ii. 530. 537. 

 pocularis, iv. 151. 



development of, iv. 153. 



articularis (glenoid cavity of scapula), ii. 157. 

 basilar, i. 7i7. 

 of bones, i. 435. 

 cavernous, iii. 633. 

 cerebral, iv. 1374. 

 circular, iii. 633 ; iv. 1451. 

 commune, ii. 537. 569. 



function of the, ii. 569. 

 of coronary vein, iv. 1415. 

 great, ii. 597. 



common, of membraneous labyrinth, ii. 537. 

 cranial, iv. 1387. 

 of the dura mater, iii. 631. 

 frontal, i. 729, 730 ; iii. 725. 



calculus of, iv. 82. 

 in the walls of veins, iv. 1380. 



functions of these sinuses, iv. 1381. 

 inferior falcis, iii. 631. 

 of internal jugular vein, iv. 1406. 

 lateral, i. 7.32; iii. 632 ; iv. 1382 . 

 longitudinal, inferior, iii. 6'29. 631. 

 superior, iii. 631. 

 anterior, iv. 1410. 

 of frontal bone, i. 729. 

 spinal, iii. 630. 

 mammillaris, ii. 546. 

 maxillary, ii 209. 

 occipital, iii. 629. 632. 

 osteum, ii. 538. 

 pctrosal, superior, iii. 632. 



inferior, iii. 632; iv. 140G. 

 pocularis, iv. 1252. 



prostatic, iv. 1246. See VESICULX PKOSTATICA. 

 of Santorini, iii. 724. 



sen cavum, laryngis. See Rima glottidis. 

 spheroidal, iii. 725. 

 spinal, iii. 630. 

 strait, iii. 631. 

 transverse, iii. 632. 

 torcular Herophili, iii. G31. 

 of Valsalva, ii. 582. 584. 

 of vena porta?, iv. 1414. 

 vc-nosi of the human spleen, iv. 70. 

 venosus, ii. 579. 



of occipital bone, i. 731. 

 Sip'ionia, a family of 1'orifera, iv. ' 5. 



characters ot the family, iv. 65. 

 Sipcncu/us, the, iii 537. 



muscles of the, iii. 537. 

 Siren lacerlina, muscles of the, iii. 543. 



vertebra; in the, i. 93, 94. 

 Sfrcn-lt'ke monsteis, iv. 9(14. 



siren formation of pelvis, s. 08. 

 Sirenomelia, iv. 9<i4. 

 Sivalfierium, cranium of the, s. 5!8. 

 SIMM PAIR OF NERVES, iii. GS4. 787 ; iv. 621. 

 definition, iv. 6il. 

 visible origin of the nerve, iv. 621. 

 branches, iv. 621. 



to sympathetic, iv. 621. 

 to ophthalmic branch of the fifth, iv. 621. 

 to the ciliary or lenticular ganglion, iv. 622. 

 physiology of the sixth nerve, iv. 622. 

 comparative anatomy, iv. 622. 



paralysis of the nerve from disease in the neighbour- 

 hood, iv. 622. 

 S. : rr, in the organic and inorganic worlds compared, i. 



118. 



Skates, muscles of the, iii. 543. 

 SKELETON, i. 141 ; iii. S21 ; iv. 022. 

 definition, iv. 6,2. 



SKELETON continued. 



tndo-skeleton, iii. 823. See OSSEOUS SYSTEM. 



skeleton of a crocodile, iii. 822. 

 exo-skeleton, iii 844 See OSSEOUS SYSTEM. 

 law of unity in variety, iv. 622. 



Prop. 1. Vertebrae are unequal quantities, iv. 624. 



II. even the one vertebra is not of equal quan- 

 tity in all individuals of the same species, 

 iv. 625. 



III. all vertebra; contain a greater or less 



amount of known elemental pieces, iv. 

 625. 



IV. the dorsal vertebra of human anatomy is an 



artificial figure, iv. 625. 

 V. the cervical vertebra developes the cosial 



appendages also, iv. 6-11. 

 VI. all the cervical vertebrae dcvelope costal 



appendages, iv. 6J7, 

 VII. the lumbar vertebra developes the costal 



appendage, iv. 627. 

 VIII. all the lumbar vertebra develope costal 



appendages, iv. 628. 



IX. the sacral vertebra? develope costal appen- 

 dages, iv. 628. 

 X. the coccygeal vertebra? are deprived of their 



costal appendages, iv. 69. 



XI. the first seven thoracic costo- vertebral 

 figures are whole or plus quantities, iv. 

 629. 



XII. the five asternal costo-vertebral forms are 

 proportionals metamorphosed from five 

 sternal costo-vertebral plus quantities, iv. 

 630. 



XIII. the five lumbar vertebra? are proportionals 

 metamorphosed from five tterr.al costo- 

 vertebral archetypes, iv. 630 



XIV. the sacro-coccygeai series of vertebra: are 

 proportionals degraded from sternal 

 costo-vertebral circles, iv. 631. 

 XV. the seven cervical vertebras are propor- 

 tionals degraded from seven stcrno-costo- 

 vertebral \vhcle quantities, iv. 631. 

 XVI. the mf.mmalian spinal axis consists of a 

 series of segmental quantities, whose only 

 variety or specific ^distinction depends 

 upon proportioning from \\hole thoracic 

 quantities, iv. 631. 



XVII. uniformity of structure is a condition proper 

 to the plus thoracic originals of the 

 spinal axis of the mammalian body, iv. 

 632. 



XVIII. every spinal segment which is lesser refers 

 to every spinal segment which is greater ; 

 and all lesser segments refer to that 

 which is greatest, iv. 633. 



XIX. structural uniformity cannot characterise 

 such spinal segments as are proportionally 

 or quantitatively various, iv. 6.>j. 

 XX. specific variety is none other than propor- 

 tional variety, iv. 633. 



XXI. the knowledge of the differential quantity 

 between all spinal segments, render's 

 them exactly uniform in idea, iv. 633. 

 XXII. without knowing the full dimensions of 

 whole or uniform quantities, we can 

 never rightly understand the real charac- 

 ter of lesser and special forms, and there- 

 fore can never otherwise understand the 

 law of formation, iv. 634. 



XX III. the mammalian cervix is not limited to the 

 fixed number of seven cervical vertebra?, 

 iv. 634. 



XXIV. the number of cervical vertebra? in the 

 mammal cervix depends upon the num- 

 ber of archetypal costo- vertebral figures 

 which have suffered metamorphosis, iv. 

 635. 



XXV. the presence of cervical ribs subtracts from 

 the number of ce. vical vertebra?, and adds 

 to the number of thoracic archetypes, iv. 

 636. 



XXVI. the length of the thorax depends upon the 

 number of persistent costo-vertcbral ar- 

 chetypes, iv. 636. 



XXVII. the numerical length of the lumbar spinal 

 region depends upon the number of ar- 

 chetypes subjected to metamorphosis, iv. 

 637. 



XXVIII. the numerical length of the sacral and 

 coccygeal series is not fixed, and this is 

 owing to the same fact of archetypes un- 

 dergoing metamorphosis, iv. 637. 

 XXIX. a comparison of the same numerical verte- 

 bra in all human spinal axes will prove 

 the truth of the present interpretation of 

 the law which governs the development 

 of all vertebral forms, not only in the 

 same spine, but all other spines, iv. 637. 

 XXX. the anomaly is a link in the chain of form, 



iv. 638. 



XXXI. all tlie spinal segments of all classes and 

 species of verk'brated animals are only as 



