2. fracture of the superior extremity of the

femur, ii. 804.

A. intra-capsular fracture of the neck of

the femur, ii. 804.

B. extra-capsular fracture of the neck and

fracture of the superior portion of
the shaft of the femur, ii. 805.

C. fracture of the neck of the femur com-

plicatrd with fracture through the
trochanter major, ii. 805, 806.

D. fracture of the neck of the thigh bone,

with impaction of the superior or
cotyloid fragment into the cancel-
lated tissue of the upper extremity
of the shaft of the femur, ii. 806.
anatomical characters of fractures of

the neck of the thigh-bone, ii. 807.
does bony consolidation of the intra-cap-
sular fracture of the cervix femoris
ever occur ? ii. 810.
cases, 811 814.
ii. luxations, ii.815.

a. dislocation of the head of the femur upwards
and backwards on the dorsum of the ilium,
ii. 815.
anatomical characters, ii. 816.

muscles, ligaments, and bones, ii. 817.
6. dislocation backwards or towards the ischiatic

notch, ii.8I8.
anatomical characters, ii. 820.

c. dislocation upwards and inwards on the puber,

ii. 820.
anatomical characters, ii. 821.

d. dislocation downwards and inwards into the

foramen ovale, ii. 122.
anatomical characters, ii. 823.

e. cases of unusual dislocations ot the head of the

femur, ii. x->4.

upwards and outwards, ii. 824.

downwards and backwards, ii. 824.
Hippobosca equina, or forest-fly, ii.
Hippocampus, iii. 986.
Hippocampus major (or cornu Ammonis), iii. 675. 698.

minor (or ergot), iii. 675. 698.

3r 2



796



GENERAL INDEX.



Hippomones, iv. 7il.

Hfppopotamtts, anatomy of the, iii. 8GO, ct scq. See PACHY-
DBBMATA.

stomach of the, s. 303.
pelvis of the, s. 156.
Hippuric, or urobenzoic, acid, iii. 800.
analysis of, iii. 800 ; iv. 1270.
in diseased urine, iv. 1283.
presence of, in the blood, iv. 460.
Hippnris vulgaris, development of, s. 240.
Hircic acid, ii. 233 ; iii. 362.
Hircin. ii. 233.
Hirudines, (or leeches), organs and mode of progression of

the, iii. 441.
ovum of, s. [117.]
Hirudinidte, eyes of the. i. 167.

respiration of the, i. 171.

Hoarseness and loss of voice, causes of, iii. 123.
Hog, parasites in the muscles of the, ii. 120.
pelvis of the, s, 156.
teeth of the, iv. 905.
Hollow of the sacrum, s. 127.
Holophrya, or woolly animalcule, iv. 13.
Holothuria, i. 109 ; ii. 31.
Holothuria tubulosa, ova of, s. [125].

Miiller's discovery of the micropyle aperture, s. [125].
nervous filaments of (?), iii. 602.
muscles of the, iii. 537.
generative system of, ii. 410.
alimentary canal of, s. 297.
See ECHINOUERMATA.
Homaloptera, an order of Insecta, ii. 867.

characters of the order, ii. 867.
Hotnogangliata, iii. 537.

muscular system of the, iii. 538.
Homogangliate nervous system of the Articulata. See

ARTICULATA.
Homoptera, an order of Insecta, ii. 868.

characters of the order, ii. 868.
Honey, method used by collectors of honey to discover

bees' nests, iii. 4?3.

Hood, or head-cowl, of Pteropoda, iv. 174.
Hoofs, structure of, iv. 437 ; s. 477.
of horses. See SOUPEDA.
of Ruminants, s. 531.

object of the cloven foot, s. 531.
Hooked worms, ii. 116. See ENTOZOA.
Hordeolum, or stye, iii. 83.
Hornets (Vespidse), habits of, ii. 865.

their habitations, iii. 11.
Horns, sacral, s. 119.
Horns of thyroid cartilage, iii. 102.
Horny tissue of animals, i. l'_7.
" Horns" or adventitious horny matter, iv. 139.
Horns of Ruminantia, structure of, s. 47*. 516.
Horse, anatomy of the, iv. 715. See SOLIPEOA.
stomach and intestines of the, s. 303.
Weberian organ of the, iv. 1419.
causes of " roaring " of the, iii. 123.
computation of the strength of a horse, iii 480.
effect of castration on the cerebellum of, iii. 687.

and on the general conformation of the body of the.

ii.713.

flocculent growth of the uvea in the, iii. 95.
mark of a stumbling horse, ii. 158.
its swimming capabilities, iii. 439.
its mode of progression on land, iii. 451.
the walk, iii. 452.
the trot, iii. 452.
the gallop, iii. 453
velocity of the horse, iii. 463
urine of the, iv. 1297.
Hottentots, their general resemblance to the Mongolians, iv.

1323.

their language, iv. 1356.

their physical and mental characters, iv. 1355.
peculiarity in the growth of their hair, iv. 1337.
their physical and psychical characteristics, iv. 1343.
the Bushmen proved to be a degraded caste of Hotten-
tots, iv 1343.

House-flies, common (Muscida?), ii. 867.
Huckle-bone, or whistle-bone. See Coccyx.
Humble-bee (Bombus terrestris), ii. 880.

thoracic spiracle of, iv. 1505.
Humeral artery, i. 465. See BKACHIAL ARTERY.
Hunnrus, i. 216 ; ii. 63. 65. 159.
condyles of the, i. 217.
development, ii. 161.
form, ii. 159.

anatomical neck of the bone, ii. 159.
surgical neck of the bone, ii. 159.
tuberosity, greater, ii. 15'J.
lesser, ii. 159.

structure of the humerus, ii. 161.
surfaces, ii 159, 160.
fractures of the, i. 218. 362 ; ii. 69.

fracture of the superior extremity of the, iv. 601.
fracture of the surgical n'-ck of the humerus
below the tuberosities and original line of junc-
tion of the cpiphysis with the shaft <-f the bone,
iv. 005.
Humming of insects, iv. 1504.



Humming-birds, characters of, i. 267.
Humor vitreus auris, ii, 539.
Hump of the dromedary, structure of the, s. 531.
Hungarian sisters, the, iv. 972.
Hunger, perception of, ii. 25.
causes of, ii. 25.

hypotheses, ii. 25, 26.
effect of the lesion of the vagi upon the sensation of, iii.

899.
Hytena, dentition of the, iv. 911, 912.

brain of the, iii. 696.

Hytsna of Van Diemen's land described, iii. 258.
Hyalea, a genus of Pteropoda, iv. 178.

anatomy of Hyalea, iv. 179.

Hyalitic substance, or substance of bone, iii. 487- Set; OS-
SEOUS TISSUE.
Hyaloid membrane, ii. 192.
Hybrid races of mankind, fertility of, iv. 1341.
Hybrids, or mules, ii. 445.
sterility of, ii. 415.
qualities transmitted from the parents to the hybiid

offspring, ii. 472.

Hydatid polypi of the nose, iii. 740.
Hydatids. See ENTOZOA ; Acephalocysts.
in the kidney, iv. 263.
of the human liver, iii. 196.
in the mammae, iii. 252.
of the ovary, s. 698.
contained in ovarian cysts, s. 584.
in pancreas, s. 110.
of the upper jaw-bone, ii. 220.
Hydatinea, a family of Rotifera, iv. 404, et scq.
characters of the family, iv. 404.
analysis of the genera of, iv. 404.
Hydatina senta, i. 1 10 ; iv. 403.

nervous system of the, iii. (.07.
Hydatis Finna of Rudolphi, ii. 118.

See Cysticercus cellulosse.
Hydrias, a genus of Rotifera, iv. 407.
Hydra fusca, a genus of Polypifera, iv. 23, 24.

ovum of, s. [127.]
viridis, or short-armed polyp, iv. 20, 21.

digestive organs of, s. '296.
biliary apparatus of, iy. 445.
substance composing its body, iv. 20.
locomotion, iv, 21.

mode of progression of the, ii. 432. 533.
nervous and muscular tissues not discernible, iii. 533.
tentacula of, iv. 21, 22.
food of, iv. 21.

power of restoring lost parts, iv. 22.
mode of reproduction, ii. 408 ; iv. 22 ; s. 17.

ova of the hydra, s. 18. [126].
structure of the integuments of the, s. 484.
Hydractinea rosea, ova of, s. [127].
Hydraphephaga, a sub-tribe of Coleoptera. ii. SCO.
Hydrates of carbon, considered as alimentary substances, s.

386.

purposes fulfilled by, in the animal economy, s. 386.
Hydrocarbon of biliary secretion, iv. 458.

of corn, s. 393.

Hydro-carbons, or fats, considered as alimentary sub-
stances, s. 386. 390.
Hydrocele, i. 6 ; ii. 60.

acute, of the tunica vaginalis, 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.

diffused hydrocele of the spermatic cord, iv. 999.
complications of hydrocele, iv. 1001.
Hydrocephalus, i. 744.
death by, i. 264.
of feet s in utero, ii. 320.
congenitus, iv. 958.
internus, iv. 958.

effects of, iv. 960.
externus, iv. 9fiO.
intemus, causes of, iii. 721.

co-existence of hypertrophy of the brain with, iii. 720
disappearance of the convolutions of the brain in, iii.

Hydrochloric acid, action of, on protein, iv. 164.

on fibrin, iv. 166.

m- thod of determining the presence of, in organic sub-
stances, ii 802.

Hydrocliloro-pepsic acid, s.336,

Hydrochcerus, or capybara, anatomy of the, iv. 373, et seq.
Hydrocyanic acid, action of, on the vital power of the heart,

i. 723. 797.

Hydro-encephaloa Ic, iv. 956.
Htidrogen, sulphuretted, effect of, on the action of the

heart,i. 797.

Hydrometra aquatica, iv. 946 ; s. 697.
Hydrophili, or water-snakes, mode of progression of the,

iii. 434.
Hydrophobia, affections of the medulla oblongata in, iii.

722 L. 7'22 Q.
produced by contact of morbid saliva with the second

skin, iv. 420.
Hydr ophthalmia, symptoms of, iv. 1464.



GENERAL INDEX.



797



Hydrnps articuli of older writers, iii. 59.

pi-ricardii, or hydropericardium, ii. 645.

ventiiciiloruin cerebri, iv. 9J3.
Hydropiicumuthorax, iv. 145.
Hjfdrorachis, iv. 957, 958.

causes of, iii. 713.
Hydrorrhcea uteri, a. 697-
Ilydro-sarcocele, iv. 996.
Hydrous picens, or great water-beetle, ii. 860.
Hydruzoa* a sub-class of Polypifera, iv. 18. 20 24.

characters of the sub-class, iv. 18. 20, 21.

ova of, s. [1'27.]

Hylubatcs agilis (gibbon), a genus of Quadrumana, iv. 195.
See QUADRUMANA.

characters of, iv. 195.

velocity of the, iii. 456.
Hymen, the, s. 710.

origin, varieties, and signification of the hymen, s. 710,
711.715.

its presence as evidence of virginity, s. 711.

uses of, ii. II".

Hy in nium of basidiosporous fungi, ?. 224.
llymcnoptcra, an order of Insecta, ii. 865.

characters of the order, ii. 865.

nervous system of, iii. 611.
7/yo-branchial apparatus (in comparative anatomy), iii. 833.

hyoid, iii. 833.

branchiostegous rays, iii. 834.

branchial arches, iii. 834.

pharyngeal bones, iii. 834.

condition of the os liyoides in Reptiles, iii. 835.

metamorphosis of the o hyoides, iii. 835.



/fyo-epiglottidean ligament, iii. 104.
7/vo-glossal membrane, or ligament, iv. 1124.
/fyo-glossus muscle, iii. 105. 564 ; iv. 1133.

action and relations, iii. 564 ; iv. 1133.
//yo- thyroid articulation, iii. 103.
//yo-thyroide* lateralia ligamenta, iii. 104.
////.-thyroid muscle, iii. 102.
Hyoid apparatus of Kuminantia, s. 526.
artery, iv. 1141.
bone, iii. 105; iv. 1123.
relations, iv. 1123.
basis or body, iv. 1123.
cornua, greater, iv. 1124.

lesser, iv. 1124.
structure, iv. 1124.
development, iv. 1124.
necrosis of the, iv. 1102.
system of muscles, iii. 542.
Hyoidean branch of the lingual artery, i. 486.
of the thyroid artery, i. 485.
Hyracotherium, an extinct genus of Pachydermata, which

see.

Hynir, anatomy of the. See PACHYDERMATA.
Hyperchromatupsy, iv. 1461.
Hypercemia (in morbid anatomy), ii. 825.
varieties, ii. 826.
ot brain, iii. 720 C.
of the digestive canal, s. 408.
of Fallopian tubes, s. 621.
of the tissues of the ovary, s. 574. 576.
HypertEsthesia, or increased sensibility of touch, iv. 1184.
HYPERTROPHY (in morbid anatomy), ii. 826 ; iv. 1158.
Hypertrophy of adipose tissue of mammas, iii. 254.
of bones of the face, ii. 220.
of the brain, iii. 719.
of the cranium, i. 745.
of the epiglottis, iii. 122.
of the heart, ii. 03*.

concentric, i. e. with diminution of capacity of the

cavities, ii. 638.

excentric, i. e. with dilatation or increased capa-
city of the cavities, active aneurism of the heart,
ii. 639.
simple, i. e. without change in the capacity of the

cavities, ii. 638.

of the heart at birth, case of, ii. 331.
of the intestinal canal, s. 418.
of the liver, iii. 188.
of nerves, iii. 720 G.

of organs of nutrition, or increased nutrition, iii. 751.
of the ovary, s. 573.
of pancreas, s. 108.
o! the prostate gland, iv. 154.
of the scrotum, iv. 1014.
of the spinal cord, iii. 714.
ol the thymus gland a hypothetical cause of spasmodic

croup, iii. 121.

of the thyroid gland, iv. 1 1 14.
of uterus, s. 687.
Hyphomycetes, or thread fungi, reproductive system of,

s. 224.

Hypnotic experiments, iv. 693. 695, 696. 703.
Hypochondria, i. 4.
Hypogastric nerve, iii. 918.

artery, or internal iliac, i. 386.
glands, i. 387.
Hupoeastric plexus of nerves, i. 181 ; iii. 918: iv. 982:

s. 429.603.641.
inferior, s. 430.
Hypogastric region, i. 505.



Ifypogaslrium, i. 4.

iliac region, i. 4.

pubic region, i. 4.
Hypoglossal, or ninth pair of nerves, iii. 6S4. 707. 721 ; iv

Hyponomeuia variabilis, ovum of, s. [113.]
Hypupion or onyx, ii. 203
Hypospadias, iii. 918 ; iv. 1256.

cases of, iv. 152.
Hyptiprymnus, or potoroos, a genus of Maisupialia, iii

characters of the genus, iii. 265.

species, iii. 265, i6t>.

llysiprymnus ursinus, a species of Marsupialia, iii. 265.
Hysteria, causes of the globus or peculiar sense of suffoca-
tion in, iii. 722 L. 722 Q.
Hysterocele, s. 684.
Hysteroloxia, s. 683.

Hystrix cristata, or common porcupine, anatomy of the, iv.
372, et teq.

dorsata, or urson, anatomy of the, iv. 377, el seq.

prehensilis, or cuendu, anatomy of the, iv. 377, el stq.



Ice, applied along the spine, in cases of muscular disturb-
ance, iii. 721 II.

Ichneumon flies (Pupophaga), ii. 865.
wings of the, iii. 423.

powers of flight of the, iii. 423.
arrangement of Cowper's glands in the, ii. 423.
Ichneumonidte, ii. 866.
Ichthine, chemical composition of, s. [141.]
Ichlhudine, chemical composition of, s. [141.]
Ichthuline, chemical composition of, s. [141.]
Ichthydtna, a family of Rotifera, iv. 401, et seq.

characters and genera of, iv. 401, et teq.
Ichthydium, a genus of Rotifera, Iv. 401, et seq.
Ichthyology. See PISCES.
Idiots, brain of, iii. 588. 718.

small amount of phosphorus in the brains of idiots, iii.

588.

analysis of cerebral matter of idiots, iii. 5*<8.
changes which take place in the, iii. 719.
fusion of the hemispheres together, iii. 719.
absence of the transverse commissures, iii. 719.
causes of idiotcy, iii. 719.
Iguana tuberculata, iv. 265. 892.
pel vis of the, s. 171.
teeth of, iv. 892.

Iguanidte, a family of Reptilia, iv. 265, et seq.
Iguanodon, teeth of the, iv. 892894.
Ilt'o-cxcal, or ileo-colic, valve, s. 363.

-colic artery, i. 195, 196; s. 379.
Ileum,ii. 10; s. 341,342.

development of the, s. 402.
ILIAC ARTERIES, ii. 827.

primitive iliac arteries, common iliacs, ii. 827.
origin and course, ii. 827.
relations, ii. 828.
size, ii. 827.
internal iliac artery, ii. 828.

origin and course, ii. H28, 829.
internal branches :

1. ilio-lumbar artery, ii. 829.

2. lateral sacral artery, ii. 830.

3. middle haemprrhoidal artery, ii. 830.

4. vesical arteries, ii. 830.

5. umbilical artery, ii. 830.

6. uterine artery, ii. 831.

7. vaginal artery, ii. 831.
external branches :

1. obturator or thyroid artery, ii. 831 .

2. glutaeal, or posterior iliac, artery, ii.

833.

3. ischiatic artery, ii. 833.

4. internal pudic artery, ii. 834.

branches :
external hannorrhoidal arteries,

ii. 835.

perineal artery, ii. 835.
artery of the corpus cavernosum,

ii. 836.
artery of the dorsum penis, ii.

836.
external iliac artery, ii. 837.

origin and course, ii. 837, 838.
relations, coverings, connexions, ii. 837.
branches :

anterior or circumflex iliac artery, ii. 842.
epigastric artery, ii. 842.
methods of operation for the ligature of the external

iliac arteries, ii. 844.
comparative merits of the different methods, ii.

846.

operations for the ligaturo of the internal iliac, ii. 848.
ligature of the primitive iliac, ii. 849.
Iliac abscess, case of, ii. 798.

fascia, i. II, 12. 14 , ii. 231. 240. 838; s. 138.
fossa, i. II.

external, s. 115.
internal, s. 117.

3r 3



798



GENERAL INDEX.



Iliac glands.internal, or hypogastric, i. 387.

regions, i. 4.

or auricular, articular surface of sacrum, s. 119.

spine, posterior superior, s. 115.

tuberosity, s. 11".

vein, common, right, iv 1412.

left, iv. 1412.
collateral branches, iv. 1412.

external, ii. 838; iv. 1412.

internal, iii. 933, 934; iv. 1412.
Iliacus muscle, ii. 166; s. 137.

interims, i. 11.
IVo- abdominal muscle, i.
//zb-hypogastric nerve, iv. 761.
I/w-ligameiit, s. 124
///o-luinbar artery, ii. 250. 829.

distribution, ii. 830.

///o-lumbo-costi-abdominal muscle, i. 6.
//'O-pectineal eminence, s. 115.
Jttb-pectineal line, s. 117.
.//z'o-pubi-costo-abdominul muscle, i. 5.
7//o- scrota! nerve, iv. 7G1.
Ilium, ii. 500 ; s. 115.

ala or wing of the, s. 115.

crest of the, s. 114.

development of, s. 120

horizontal rain us, or body, of the, s. 116.

peritoneum of the, iii. 943.

spinous process of, posterior superior, s. 115.

superior curved line of the, s. 114.
Imago, the, or perfect state of insects, ii. 880.
Imbecility preceding death, i. 799.
Impression, deltoid, iv. 571.

gluteal, s. 115.
Impulse of the heart, ii. C04.
Inanition, syncope by, i. 797.
Incident nerves, iii. TM H.
Incineration of organic substances, iii. 794.

method of performing, iii. 794, 795.
Incisive bone, or intermaxillary, ii. 210.

canal, ii. 208.

foramen, ii. 208.
Incisura acetabuli, ii. 776.

helicis, ii. 551.

majpris, s. Santorini, muscle, ii 553.

semilunaris, lunula (coracoid process), ii. 156.
Incubation See OVUM.

instincts guiding, of birds, iii. 14.

Crustacea, i. 785.
Incubus, or night-mare, iv. 688.
Incus, or anvil-bone, ii. 546.

development, ii. 560.

abnormal conditions, ii. 561.
India, variety in the complexion of the different races of

iv. 1336, 1337.
Indian Archipelago, inhabitants of the, iv. 1363.

elephants, iii. 858. See PACHYDERMATA.

ink, the Chinese pigment so called, i. 53fi.
Indicator, or extensor proprius primi digiti manus, muscle,

Indigestion, causes of, i. 416.

Indo-European, or Indo-Germanic, races, characters of, iv.
1348.

languages, iv. 1347.
Induration of the human body, i. 81.

of the muscular substance of the heart, ii. 637.

of pancreas, s. 109.

of the spinal cord, iii. 714.

See SOFTENING AND INDURATION.
Infcrobranchiata, ii. 377. See GASTEROPODA.
/w/ro-clavicular nerves, iv. 755.
////rrt-costaies muscles, iv. 1056.

action, iv. 1056.
/7//>vz-maxillary nerve, iv. 548.
Infra-orbital artery, i. 490 ; ii. 227 ; iii. 93. 733.

nerve, ii. 284.

filaments of nerves, iv. 547.

vein, iv. 1404.
Infra- 01 bitar canal, ii. 208.

or canine fossa, ii. 207, 208.

groove, ii. 208.
Infra-spinal artery, iv. 435.
Infra spinatus muscle, i. 217 ; iv. 436.
/w/j-rt-trochlear nerve, ii. 282 ; iii. 93.

branch of nasal nerve, iii. 785.
Infundibulum of base of brain, iii. 703.

of cochlea, ii. 532.

of kidney, iv. 238.

of nasal fossa, i. 731 ; iii. 725.

or pavilion, of Fallopian tube, s. 601.

of right ventricle of heart, ii. 581.

of Rossignol, s. 264.268.

of Cephalopoda, i. 517. See CEPHALOPODA.
Infusoria, theory of the first origin of, ii. 4L'0.

organs of circulation in, i. 654.

dif-e-tive organs of, s. 295.

respiratory movements of, iv. 1018.

spermatozoa in, iv. 499.

ova of, s. [129.]

li.t of Infusoria possessing the property of luininons-

ne>s, iii. 198.
Inges'a and egesta, s. 382. See Food.



Ingestion, analysis of the various acts of, iii. 721 I.
Ingluvies, craw or crop of birds, i. 317 ; s. 301. See AVES.

functions of, ii. 11.
of insects, s. 298.

structure of the ingluvies of Ruminantia, s. 535.
Inguinal canal, i. 7, 8. 12.
glands, superficial, ii. 238.
lymphatic glands, i. 308.
nerve, internal, iv. 762.
pouches, external and internal, i. 13.
ring, ii. 840, 841.
hernia, congenital, i. 508 ; s. 404.

of foetus in utero, ii. 319.
Inguino-cutaneuus nerve, small, iv. 762.
INNOMINATA ARTERIA (human anatomy), ii. 850; iii. 580;

iv. 1107.

anomalies, ii. 852.
ligature, ii. 852.
relations, &c., ii. 850.
left, iv. 819.
surgical operations connected with the innominate

artery, iii. 580, 581.
Innominate bone, ii. 776 ; s. 114.
its office, s. 114.
border, superior, s. 114.
anterior, s. 114.
inferior, s. 1 14.
posterior, s. 114.
surface, external or femoral, s. 115.

acetabulum, or cotyloid cavity, s. 116.
descending ramus, or body, of the ischium,

s. 116.
horizontal ramus, or body, of the pubis,

s. 116.

ascendii g ramus of the ischium, s. 1 16.
descending ramus of the pubis, s. 11G.
obturator, or thyroid, foramen, s. llti.
sub-pubic, or obturator, groove, s. 116.
internal, or pelvic, surface, s. 117.
iliac tuberosity, s. 117.
sacral or auricular surface, s. 117.
internal iliac fossa, s. 117.
ilio-pectineal line, s. 117-

internal structure of the innominate bone, s. 117.
development of the innominate bone, s. 120.
fractures of the, s. 209.
Innominate fossa, ii. 550.
gland, iii. 88.

line, or linea ilio-pectinea, s. 127.
veins, iv. 1408.

right, iv. 815, 816. 1408.
left, iv. 1408.

collateral branches, iv. 1408.
Ink-bag of cuttle-fish, i. 534 ; iv. 453.
Inorganic ; analysis. See ORGANIC ANALYSIS.

nuclei of intestinal calculi, iv. 84.
Insalivation of food, process of, s. 397-
Junction of the tongue in, iv. 1152.
INSECTA, i. 110; ii. 853.

ancient and modern classification of Insecta, ii. 855.
character of the class, i. 246 ; ii. 859.

Swammerdam's dissections of insect structures,

iii. 317.

definition, ii. 853, 854.
table of the arrangement of Insecta according to the.

system of Mr. Stephens, ii 850.
Sub-class I. Mandibulata, ii. 859.

Ord. I. Coleoptera, ii. 859.
II. Dermaptera, ii. 863.

III. Orthoptera, ii. 864.

IV. Neuiopteraii. 864.
V. Trichoptera, ii. 865.

VI. Hymenoptera, ii. 865.
VII. Strepsiptera, ii. 866.
Sub-class II. Haustellata, ii. 866.

Ord. VIII. Lepidoptera, ii. 866.
IX. Diptera, ii. 867.
X. Homaloptera, ii. 867.
XI. Aphaniutera, ii. 867.
XII. Aptera, ii. 868.

XIII. Hemiptera, ii. 868.

XIV. Homoptera, ii. 868.
different states of existence, ii. 869.

the egg, ii. 8C9.
the larva, ii. 869

external anatomy of the larva, ii. 870.
external anatomy of the head, ii. 872.
organs of locomotion, ii. 873; iii. 441.

mode of progression of the apode larvae,

iii. 441.
mode of progression of the pedate larvae,

iii. 441.
growth and changes of the larva, ii. 874; iii.

539.

the pupa, nymph, aurelia, or chrysalis, ii. 879.
the imago or perfect state, ii. 880.
circulatory system, i. 651 ; ii. 976.

the heart, or great dorsal vessel, ii. 976.
generation, organs of, ii. 441. 990.
ova of insects, s. [110.]
spermatozoa of Insecta, iv. 488.
mode of reproduction of, s. 33.



GENERAL INDEX.



799



INSECTA continued.

derma-skeleton, ii. 881.

its chemical composition, chitine or tnto-

raoline, ii. 881.
it-, thirteen segments, ii. 882.
abdomen, ii. 918.
articulations, ii. 883.
head, table of the parts and appendages of the, ii.

885.

account of these, ii. 885.
antennae, ii. 890.
development of the head, ii. 09,
internal parts of the head, ii. 892.
mandibles, ii. 888.
maxillae, ii. 889.
mouth, ii. 897.
locomotion, organs of, ii. 924 ; iii. 442.

aberrations of forms in the organs of loco-
motion, ii. 933.
legs, ii. 931.
wings, ii. 924.

articulation of the wings, ii. 92G.

file, ii. 928.

neuration, or distribution of the tracheae

in the wings, ii. 926.
use of the wings of insects, iii. 539.
powers cf flight of insects, iii. 419. See Mo-

TION, ANIMAL.

powers of leaping of insects, iii. 475.
velocity of predaceous insects, iii. 443.
locomotive powers ol" aquatic insects, iii. 434.
thorax, ii. 911.

meso-thorax, ii. 914.

meta-thorax, ii. 914.

pro-thorax, ii. 914.

table of parts, ii. 913.

muscular system, ii. 934; iii. 538.

muscles of the larva, ii. 935.

of the perfect insect, ii. 939.
nervous system, ii. 942 ; iii. 609.

development of the brain and nervous system,

ii. 962.

nervous system of the larva, ii. 943.
nerve's of the head, ii. 945.
of ihe thorax, ii. 945.
of the abdomen, ii. 946.
nervous system of the perfect insect, ii. 948.
distribution, ii. 955.
structure, ii. 952.
organs of hearing, ii. 961.

smell, ii. 962 ; iv. 700.
touch, ii. 9G1.
vision, ii. 960.

optic nerves of the' compound

eyes of insects, iii. 775.
nutrition, organs of, ii. 965.

alimentary canal of larva, ii. 966 ; s. 298.

appendages of the canal, il. 973.
alimentary canal of perfect insect, il. 905 ; a. 298.

appendages of the canal, ii. 965.
biliary apparatus of, iv. 446.
ingluvies or crop, s 298.
gizzard, s. 298.
stomach, s. 298.
hepatic cceca of, iii. 174.

salivary glands of insects, iv. 431.
tongues of insects, iv. 1 142.
mucous coat, ii. 966.
muscular coat, ii. 965.
peritoneal coat, ii. 965.
adipose tissue, ii. 975.
anal, or proper uriniferous organs, ii. 975.
respiration, organs of, ii.

function of respiration, ii. 987. See RESPIRATION.
Insecta, re-piratory movements of insects, iv. 1019.

tegumentary appendages, hair, scales, spines, ii. 993.