788 



GENERAL INDEX. 



of* the 



GENERATION, female external organs continued. 



sebaceous and muciparous glands and follicles 



of the vulva; vulvo-vaginal glands, s. 711. 

 bulb of the vagina; pars intermedia; con- 



stricter vagina*, s. 712. 



blood-vessels and nerves of the external or- 

 gans, s. 713. 

 abnormal anatomy, 

 labia, s. 714. 

 clitoris, s. 714. 



nymphae and vestibule, s. 714. 

 hymen and ostiurn vaginas, s. 715. 

 abnormal conditions of the, in cases of hermaphrodit- 



ism. See HERMAPHRODITISM. 

 GENERATION (in physiology), ii. 424. 



definition, 424. 



I. Function of reproduction generally considered, ii. 

 426. 



1. introductory remarks, ii. 426. 



2. theories of generation, ii. 427. 



epigenesis and evolution, ii. 428. 



3. spontaneous generation of animals, ii. 429. 



II. Sketch of the principal forms of the] reproductive 



functions in different animals, ii. 432. 

 1. non--sexual reproduction, ii. 432. s. 2. 5. 

 three forms of, s. 2, 3. 



fissiparous generation, ii. 432. 

 gemmiparous generation, ii. 433. 

 reproduction by separated buds or sporules, 



ii. 433. 



of the process of reproduction in Protozoa, or 

 animals in which the sexual distinction has not 



been discovered, s. 6. 



the possibility of primary, direct, or non-pa- 

 rental production of animals, or of so-called 

 spontaneous and equivocal generation, s. 9. 

 production of dissimilar individuals among sexual 

 animals by a non-sexual process : so-called 

 "alternate generations," s. 12. 

 embryological development, s. 12. 

 metamorphoses, s. 12. 

 metagenesis, s. 13. 38. 

 larva, s. 13. 



alternating reproduction of 

 Echinodermata, s. 14. 

 Polypina, s. 16. 

 Acalephse, s. 20. 

 Mollusca, s 22. 

 Salpidae, s. 23. 

 Entozoa, s. 24. 



cystic Entozoa, s. 25. 

 free tapeworms, s. 27. 

 Trematoda, s. 29. 

 Annelida, s. 32. 

 Insecta: Aphides, s. 33. 

 general remarks on alternate generations, s. 



13.34. 



the " nurse " of Steenstrup, s. 37. 

 parthenogenesis, s. 37. 

 2. Sexual reproduction, ii. 434. 



nature of the ovum, ii. 434. 



ovum in general as related to the sexual 



process of generation, s. 3. 

 essential conditions and phenomena of the 



sexual mode of generation, s. 4. 

 relation of the ovum to fecundation by the 



male sperm, s. [137.] 

 action of the spermatozoa on the contents of 



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

 hermaphrodite generation, ii. 434. 

 dioecious reproduction, or with distinct in- 

 dividuals of different sexes, oviparous and 

 viviparous generation, ii. 435. See also 

 OVUM. 

 varieties in respect to utero-gestation and the 



development of the young, ii. 436. 

 Marsupiate generation, ii. 436. 

 Monotrematous generation, ii. 437. 

 comparison of animal and vegetable reproduc- 

 tion, ii. 437. 

 synoptical table of the various forms of the 



reproductive process, ii. 438. 

 III. Reproductive functions in man and higher 



animals, ii. 438. 

 sketch of this function in man, ii. 438. 



See OVUM ; UTERUS AND ITS APPENDAGES. 



organs of reproduction, ii. 438. 



puberty, ii. 439. 



structural differences of the sexes, ii. 439. 



menstruation, ii. 439. See MENSTRUATION. 



periodical heat in animals, ii. 441. 



age at which puberty occurs, ii. 441. 



period during which the generative function 



is exercised, ii. 442. 

 variations in the lower animals, ii. 412. 

 effects of castration, ii. 443. 

 sexual feeling, ii. 443. 

 relation of reproduction to the brain, ii. 



444. 



Gall's views of the connexion of the cere- 

 bellum with the sexual functions, iii. 

 722 S. 



GENERATION, reproductive functions continued. 

 distinction of species mules, ii. 34-1. 

 functions of external organs of reproduction, 



ii. 445. 

 erection, ii. 445. 



IV. Changes consequent on fruitful sexual union, ii. 



447. 



1. As regards the female chiefly. Conception, 



ii. 447. 



turgescence of the generative organs after 

 conception, iii. 447. 



approximation of the fimbriated extremities 

 of the Fallopian tubes to the ovary, ii. 417. 



changes in the ovary ; bursting of tKe Graafian 

 vesicles, ii. 448. 



formation of the corpus luteum, ii. 449. 



descent of the ovum. Its structure and 

 changes during its passage, ii. 451. 



time at which the ovum arrives in the ute- 

 rus, ii. 453. 



change in the uterus after conception, ii. 454. 



irregularities in the descent of the ovum, ii. 

 455. 



circumstances influencing liability to concep- 

 tion, ii. 456. 



signs of recent conception in women, ii. 457. 



office of the uterus in insemination, s. 671. See 

 UTERUS. 



office of the uterus in gestation, s. 672. 



gestation in Fallopian tube, s. 620. 



varieties of, s. 621. 



2. As regards the male, ii. 457. 



fecundation, ii. 457. 



properties of the seminal fluid, ii. 457. 

 chemical properties, ii. 458. 

 spermatic animalcules, ii. 459. 



table of their sizes in different 



animals, ii. 460. 

 See also SEMEN. 



circumstances on which the fecundating 

 property of the seminal fluid depends, 

 6.461. 

 difference between the fecundated and 



unfecundated ovum, ii. 4f.2. 

 is material contact of the semen and ovum 



necessary ? ii. 462. 

 external and artificial fecundation, ii. 



4G2. 



course of the seminal fluid within the 

 female organs, ii. 464. 



nature of the fecundating principle. 



Hypothesis of an aura, &c., ii. 466. 

 general conclusions respecting fecunda- 

 tion, ii. 467. 



V. Miscellaneous topics relating to the preceding 



history of generation, ii. 408. 



1. superfcetation, ii. 469. 



2. influence exerted by parents on the qualities of 



their offspring, ii. 470. 



3. number of children and relative proportion of 



the male and female sexes, ii. 478. 

 causes of variation of sex, ii. 479. 

 table of the proportion of males to females 



born in different countries, ii. 478. 

 See also OVUM; UTERUS AND ITS APPENDAGES. 

 Gestation. See Generation; OVUM; UTERUS AND ITS 



APPENDAGES. 

 Genial processes, ii. 214. 

 Genicular nerve, internal, ii. 241. 

 Geniculate bodies, iii. 700. 

 external, iii. 700. 

 internal, iii. 700. 



their relation to the optic nerves, iii. 768. 

 ganglion, iv. 549, 550. 

 Genioglossus muscle, iv. 1125. 1133. 



action and relations, iv. 1133. 

 Genio-hyo-glossus muscle, iii. 565. 



action and relations, iii. 565. 

 Genio-hyoideus muscle, iii. 105. 565. 



action and relations, iii. 565. 

 Genito-crural nerve, ii. 838 ; iv. 761, 762. 



crural branch, iv. 762. 

 Genito-urinary organs, motor influence of the sympathetic 



nerve in reference to the, s. 46'i. 

 Genito-urinary tract of the mucous membrane of man, iii. 



495. 497. 



Geodephaga, or ground-beetles, ii. 859. 

 characters of the sub-tribe, ii. 859. 

 Geodia, a family of Porifera, iv. 65. 

 characters of the family, iv. 65. 

 Geometrce, organs and singular mode of progression of the, 



iii. 442. 



Gt-omys bursarius, or Canada rat, iv. 386. 

 Georgian nation, changes in the anatomical conformation 



of, iv. 1328, 1329. 

 Geotrupes stercorarius, or dung-beetle, ii. 860. 



nervous system of, iii. 610. 

 Gerbilles, anatomy of, iv. 371, et seq. 

 Germ-mass, blastoderm, or germinal membrane, s. 4. 

 Germinal vesic\e,or germ-cell.of ovum, s. 3. 70. [87.] [133.1 



ii. 452. 

 See GENERATION; OVUM. 



