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the crystal in the form of a cone, the vertex of which is at the point of emergence; and internal conical refraction, in which the ray is changed into the form of a cone on entering the crystal, from which it issues in the form of a hollow cylinder. This singular phenomenon was first discovered by Sir W. R. Hamilton b…

e thin membrane which separates the canal of the cochlea from the vestibular scala in the internal ear.

requiring, as of right; a demand or application made as by authority. Specifically: (a) (International Law)

ods. (Physiol.) See 2d Note under Food, n., 1. -- Respiratory tree (Zoöl.), the branched internal gill of certain holothurians.

One of the three judges of the internal regions; figuratively, a strictly just judge.

To grove; to channel; especially, to groove internally with spiral channels; as, to rifle a gun barrel or a cannon.

ves; the saphenous opening, an opening in the broad fascia of the thigh through which the internal saphenous vein passes.

A fleshy covering of a seed, lying between the external and internal integuments.

stinguished as the external, or male screw, or, more usually the screw; the latter as the internal, or female screw, or, more usually, the nut.

from the first development of constitutional symptoms to the time when the bones and the internal organs become involved. -- Secondary tint, any subdued tint, as gray. -- Secondary union (Surg.), the union of wounds after suppuration; union by the second intention.

e operated by electricity, compressed air, a spring, or an explosive gas), attached to an internal- combustion engine, as on an automobile, and used as a means of starting the engine without cranking it by hand.

Designating an internal-combustion engine of a type resembling the Diesel engine in using as fuel heavy oil which is injected in a spray just before the end of the compression stroke and is fired without electrical ignition. The fuel is sprayed into an iron box (called a hot bulb or hot pot) opening into the combustion…

disagreeable, produced either by an external object (stimulus), or by some change in the internal state of the body. Perception is only a special kind of knowledge, and sensation a special kind of feeling. . . . Knowledge and feeling, perception and sensation, though always coexistent, are always in the inverse ratio…

ired learning or of speculation." -- Moral sense. See under Moral, (a). -- The inner, or internal, sense, capacity of the mind to be aware of its own states; consciousness; reflection. "This source of ideas every man has wholly in himself, and though it be not sense, as having nothing to do with external objects, yet…

n, or till the owner has performed the decree of court, or clears himself of contempt; in international law, to confiscate. Formerly the goods of a defendant in chancery were, in the last resort, sequestered and detained to enforce the decrees of the court. And now the profits of a benefice are sequestered to pay the d…

, crustaceans, and some other invertebrates. In some mollusks, as the cuttlefishes, it is internal, or concealed by the mantle. Also, the hard covering of some vertebrates, as the armadillo, the tortoise, and the like.

An outward mark by which internal characteristics were supposed to be indicated. Some plants bear a very evident signature of their nature and use. Dr. H. More.

The muffler of an internal-combustion engine.

o not conform to the restrictions for the regular classes established by the rules of the International Yacht Racing Union. In yachts of the sonderclass, as prescribed for the season of 1911, the aggregate of the length on water line, extreme beam, and extreme draft must be not more than 32 feet; the weight, not less…

The letters signified by the signal ( . . . ---. . . ) prescribed by the International Radiotelegraphic Convention of 1912 for use by ships in distress.