Outlines of comparative physiology : touching the structure and development of the races of animals, living and extinct for the use of schools and colleges / by Louis Agassiz and A.A. Gould ; edited from the revised ed. and greatly enl. by Thomas Wright.
- Louis Agassiz
- Date:
- 1855
Licence: Public Domain Mark
Credit: Outlines of comparative physiology : touching the structure and development of the races of animals, living and extinct for the use of schools and colleges / by Louis Agassiz and A.A. Gould ; edited from the revised ed. and greatly enl. by Thomas Wright. Source: Wellcome Collection.
466/480
![Hibernation (Lat. hyems, winter), the torpid state of animals during winter, 402. Histolog'ical (Gr. ioroc, a tissue; XoyoQ, discourse), the doctrine of the tissues which enter into the formation of an animal and its different organs, 210. Holothu'rians, soft sea slugs, biche- le-mar, xxiii. Homal'onotus de]phinoceph'alus,6G5 Homoge'neous, uniform in kind. Hom'ologue (Gr. ogoc, like ; Xoyog, speech), the same organ in dif- ferent animals under every variety of form and function. Ilomol'ogy, or affinity, 16. Homop'tera (Gr. bpog, like; vrepov, a wing), the insects in which the four wings have a similar struc- ture, but restricted in its applica- tion to a section of Hemiptera. Llu'merus.or shoulder-bone,the, 272. Hy'aline (Gr. vaXoc, crystal) matter, the pellucid substance which de- termines the spontaneous fission of cells, 42. Hydatid (Gr. vbang, a vesicle), a bladder of albuminous membrane, containing serous fluid ; generally detached ; sometimes with an or- ganised head and neck. Hy'dra (Gr. vbpa, a water-serpent), the modern generic name of fresh- water polyps. Hy'driform, similarly-formed polyps. Hy'drogen (Gr. iibiop, water; ysvvaiu, I produce ;) a gas which is one of the constituents of water. Hy'droids, fresh-water polyps, xxiii. Hydrozo'a (Gr. vbpa, water ; £<2oi/, animal), the class of Polypi or- ganised like the Hydra. Hymenop'tera (Gr. vpyv, a mem- brane ; Trrepbvy a wing,) the order of insects, including the bee, wrasp, &c. which have four membranous wings. Ichthyosau'rus (tyOvc, a fish; cravpog, a lizard), an extinct saurian, 673. Ide, idae (Gr. tlbog, resemblance), a termination indicating likeness. As Acarus, a mite; Acaridae, re- sembling the mite. Ig'neous (Lat. ignis, fire) rocks, 64 G. Iguan'odon, an extinct gigantic rep- tile, resembling in its teeth the iguana, an existing lizard. ll'ium, the, 263. Imbrica'ted (Lat. imbricatus, tiled), scales which lie one upon another like tiles. Inanimate beings, plants, 75. Incesso'res, perching birds, like birds of prey, xxi. Inci'sor (Lat. incido, I cut), or cut- ting teeth, 341. Incuba'tion (Lat. incubatio), hatch- ing of eggs by the mother. Incuba'tion, 442 ; physical and che- mical changes in the egg during, 499. In'cus, or anvil, the, 149. Infuso'ria(Lat. inf undo), microscopic animals, inhabiting infusions of ani- mal or vegetable substances, xxiv- Infuso'ria, digestion in the, 314. Inoper'cular, univalve shells which have no operculum or lid. Inorgan'ic, not made up of tissues. Insaliva'tion, 345. Injects, a class of the Articulates, xxii. In'sects, digestive organs of, 327 ; jaws of, 337 ; circulation, 370 ; respiration, 385. Instinct, 191—204. Intelligence and instinct, 185—204. Interambula'cra, the imperforate plates which occupy the intervals of the perforated ones, or ambu- lacra in the shells of the Echino- derms; see Ambulacra. Interstitial (Lat. interstitium), rela- ting to the intervals between parts. Invertebra'ta (Lat. in, used in com- position to signify not, like un;](https://iiif.wellcomecollection.org/image/b28056644_0468.jp2/full/800%2C/0/default.jpg)