872 



GENERAL INDEX. 



TERATOLOGY, malformations of foetus continued. 



VI. Want, and defective formation, of the 

 trunk, Acormia, iv. 963. 



a. only a part of head formed, iv. 963. 



b. superior parts of the body formed with- 



out the inferior limbs, iv. 964. 



c. monopodia, iv. 964. 



d. sympodia, iv. 964. 



e. original defective formation of the 



pelvis, iv. 965. 

 /. defective development of the spinal 



column, iv. 965. 



VII. Defective formation of the extremities, iv. 

 965. 



1. want of all the extremities, iv. 9f>5. 



2. want of the intermediate parts in the 



extremities, so that the hand 'is at- 

 tached immediately to the shoulder, 

 and the foot to the hip, iv. 966. 



3. limbs too short, iv. 966. 



4. limbs which seem to be truncated, iv. 



966. 



5. diminished number of ringers and toes, 



iv. 966. 



6. coalesced fingers and toes, iv. 966. 



7. abnormal direction of the foot. See 



FOOT, ABNORMAL CONDITIONS OF THE. 

 VIII. Cyclopia, iv. 967. 



IX. Deficiency of the under-jaw, Monotia, iv. 

 967. 



1. total defect of the opening of the mouth, 



iv. 967. 



2. the opening of the mouth represented 



by a fissure at the inferior surface of 

 the face, iv. 967. 



3. too short an under-jaw, iv. 967. 



B. Montrosities produced by Exctss of develop- 

 ment, iv. 967. 

 I. Foetus in fcetu, iv. 9 r >7. 



1. a foetus more or less perfect contained 



in the cavity of the body of its 

 twin brother or sister, iv. 967. 



a. in the uterus, iv. 967. 



b. in the abdomen, iv. 967. 



c. in the anterior mediastinum, iv. 



968. 



d. in the scrotum and testes, iv. 968. 



e. in the stomach, iv. 968. 



/. in the intestinal canal, iv. 968. 



f. in the orbit, iv. 968. 

 . at the tentorium of the dura mater, 

 iv. 968. 



f. at the palate, iv.968. 



2. the more or less developed rudiments 



of a foetus adhere, in the form of 

 a tumour, to the external surface 

 of a second body, and are covered 

 by the external integuments, iv. 

 968. 



rt. to the cheek, iv. 968. 



6. to the neck, iv. 968. 



c. to the epigastric and umbilical re- 



gion, iv. 968. 



d. to the sacral and perineal region, 



iv.968. 

 II. Double monsters, in which one of the 



foetuses is more or less perfect, and the 



other merely an appendix to it, heter- 



adelphi, iv. 968. 

 first species : the appendix consisting of a 



head only, iv. 968. 

 second species : the appendix consisting 



of more or less developed extremities 



only, iv. 968. 

 third species : ^ttie appendix is an ace- 



phalus with four extremities, iv. 969. 

 fourth species: the appendix a complete 



body with a head and four extremities, 



iv. 969. 

 III. Double monsters, iv. 969. 



1. anterior duplicity, iv. 969. 



2. lateral duplicity/iv. 970. 



3. inferior duplicity, iv. 972. 



4. posterior duplicity, iv. 972. 



5. superior duplicity, iv. 972. 

 generalisations, iv. 972 976. 

 hermaphrodism in double monsters, ii. 



736. 

 Terebella, instinct guiding the formation of its habitation. 



iii. y. 

 Tcrehrantia, a section of Hymenoptera, ii. 86.1, 866. 



characters and habits of the section, ii. 805. 

 Tercs ligament of the hip-joint, i. 13. 251. 



major muscle, i. 217. 360. 362 ; iv. 436. 



minor muscle, i. 217; iv. 436. 

 Teretes lacerti, ii. 581. 



Termites, or white ants, ii. 865. See also Ants, white. 

 Termitina, a section of Neuroptera, ii. 865. 



characters of the section, ii. 865. 

 Terrestria, a section of Hemipttra, ii. 868. 

 Test, or shell, of Tunicata, iv. 1193. 

 Testacea, characters of the family, i. 521. 



Testes (of brain), iii. 677. 685. 

 TESTICLE, ii. 422. 481 ; iv. 976. 

 human anatomy, iv. 976. 



I. protective parts, or tunics, iv. 976. 

 tunica vaginalis, iv. 976. 

 appendage, iv. 977. 

 tunica albuginea, or tunica propria, iv. 977- 



corpus Highmori, iv. 977. 

 mucous membrane of the, iii. 487. 408 

 II. glandular or secreting structure, iv. 977. 

 tubuli seminiferi, iv. 978. 

 rete testis, iv. 977. 979. 

 internal composition of the testis, iii. 498. 



III. the excretory parts, iv. 979. 



epididymis, iv. 979. 



globus major, or head, iv. 979. 



minor, or tail, iv. 979. 

 vasa efferentia, iv. 979. 



coni vasculosi, iv. 979. 

 vasculum aberrans, iv. 980. 

 vas deferens, iv. 980. 



IV. vessels and nerves of the testicle, iv. 981. 



spermatic vessels, iv. 981. 



arteries, iv. 981. 

 veins, iv. 981. 



absorbents, iii. 227 ; iv. 982. 

 nerves, iv. 982. 

 position of the testicles during the early periods of 



fetal existence, ii. 740. 

 descent and development of, ii. 740. 

 development of the, iv. 473, 474. 



progressive development of the vesicles of the 



testis of Squalus cornubicus, iv. 453. 

 V. the testicle in the foetus, and its passage into 



the scrotum, iv. 982. 

 VI. functions of the testicle, iv. 984. 



influence of the brain and testicles upon each 



other, iv. 985. 994. 

 influence of the, in developing the general sexual 



peculiarities of the male, ii. 714, el seq. 

 the testicles the only source of the fecundating 



power, ii. 458. 

 quantity of semen emitted from the testicles at 



each coitus, iv. 1434, 1 135. 

 envelopes of the testicle, iv. 986. 

 superficial or external spermatic fascia, iv. 936. 

 cremaster muscle, iv. 986. 

 deep spermatic fascia, iv. 986. 

 spermntic cord, iv. 986. 



VII. Comparative anatomy. See GENERATION, OR- 

 GANS OF. 

 VIII. Abnormal anatomy, iv. 986. 



congenital imperfections and malformations, iv. 



986. 



numerical excesses and defects, iv. 986. 

 supernumerary testicles, iv. 986. 

 monorchides, iv. 987. 



deficiencies and imperfections of the vas de- 

 ferens, iv. 987. 



origin of these defects, iv. 988. 

 influence of these deficiencies and imper- 

 fections on the subsequent condition of 

 the testicle, iv. 988. 

 imperfect transition, iv. 988. 



causes of failure of transition, iv. 989. 

 abnormal conditions of the testicles in cases of 

 spurious hermaphroditism. See UERMAPHRO- 



01TISM. 



fatty degeneration of the testicle, iv. 96. 



induration of the testicle, iv. 712. 



passage of the testicle into the perineum, iv. 



990. 

 passage of the testicle through the crural ring, iv. 



atrophy of the testicle, iv. 991. 



1 . arrest of development, iv. 991. 



2. wasting, iv. 992. 



causes, iv. 992, 993. 



inflammation of the tunica vaginalis, or acute 

 hydrocele, iv. 994, 995. 



analysis of the fluid of hydrocele, iv. 995. 



multilocular hydrocele, "iv. 996. 



hydro-sarcocele, iv. 996. 

 congenital hydrocele, iv. 996. 

 encysted hydrocele, iv. 997. 



of the epididymis, iv. 998. 



of the tunica vaginalis, iv. 998. 



occurrence of spermatozoa in the fluid con- 

 tents of the cyst, iv. 998. 

 probable cause of, iv. 999. 



diffused hydrocele of the spermatic cord. iv. 909. 

 encysted hydrocele of the spermatic cord, iv. 



1000. 



complications of hydrocele, iv. 1001. 

 heematocele of the testicle, iv. 1002. 



encysted hscmatocele of the testicle, iv. 1003, 

 orchitis, iv. 1004. 



acute, iv. 1004. 



chronic, iv. 1006. 



syphilitic, iv. 1008. 



tubercular disease of testicle, iv. 1008. 

 carcinoma of the testicle, iv. 1009. 



