The Meta-Encyclopedia

Single-source entries: T (67)

Each of these 14 subjects appears in only one of the 6 encyclopedias on this shelf. None is long enough to carry a page by itself, so they are gathered here by letter. Anything that grows moves out to a page of its own.

Trepang

the dried body of a species of sea-cucumber. See Sea-Cucumber

Only in Aiton's Encyclopedia

Trepomonas

the type genus of Trepomonadidæ, with a single species, T. agilis, from marsh water with decaying vegetable substances.

Only in Collier's New Encyclopedia

Treron

in ornithology, tree pigeons; a genus of Columbidæ (the Vinago of Cuvier), with 37 species, ranging over the whole Oriental region, and E. to Celebes, Amboyna and Flores, and the whole Ethiopian region to Madagascar. Formerly cly made the type genus of the lapsed family Treronidæ.

Only in Collier's New Encyclopedia

Treronide

in ornithology, a family of Columbacei, approximately equivalent to the genus Treron. Bill large, strong, compressed at sides, tip very hard, hooked; nostrils exposed; tarsi short, partly clothed with feathers below tarsal joint; the whole foot formed for perching and grasping; claws strong, sharp, and semicircular.

Only in Collier's New Encyclopedia

Trescott

WILLIAM HENRY, an American diplomatist; born in Charles- imprisonment. Battery is an active atton, S. C., Nov. Nov. 10, 10, 1822; was graduated at Charleston College in 1840; admitted to the bar in 1843; assistant Secretary of State from June, 1860, till South Carolina seceded; represented that State in Washington after the war till the differences arising from the reconstruction Compelling any one to submit by the exacts were adjusted. He settled permanently in Washington in 1875, and there resumed the practice of law; was counsel for the United States before the Fishery Commission at Halifax in June, 1877; was a commissioner with General Grant to arrange a commercial treaty with Mexico in 1882; and served in other important diplomatic capacities. His publications include: "A Few Thoughts on the Foreign Policy of the United States" State (1849); "Diplomatic System of the United States" (1853); "The Diplomatic-History of the Administrations of Washington and Adams" (1857); etc. He died in Pendleton, S. C., May 4, 1898.

Only in Collier's New Encyclopedia

Trestle

A beam connected to three or four legs which spread out at the bottom to impart greater stability. Trestles are made of various sizes and shapes for supporting moulds, flasks, etc., and are commonly termed horses when used for this purpose. The forms of trestles, in both wood and iron, vary according to the use for which they are intended. See CORE-LATHE.

Only in The Encyclopedia of Founding

Trevena

JOHN, pseudonym of an George Henham English novelist, Ernest , born in 1873. Delicate in health he sought health in wandering and finally settled at Dartmoor, the scene of several his own The works under of his novels. Menotah: A Tale of the name include: " Canadian North West"; "God, Man and Trenbrae"; "Bonanza: A the Devil"; " "; "Scud: The Story Story of the Outside The Plowshare and the of a Feud"; " of Conscious- Sword"; "Krum: A Study ness." Works under his pseudonym in- "; "Furze Divv in Petticoats ALA 502 TRIANGLE OF FORCES

Only in Collier's New Encyclopedia

Trewia

in botany, the typical genus of Trewiacea. Leaves opposite, entire, without stipules; flowers diecious, males in long, racemes, females axillary, solitary; males, sepals three to four, stamens many; females, calyx three to fourcleft, style four-cleft; drupe five-celled, each cell with a single seed. Known species one, T. nudi-flora, an Indian deciduous tree, growing in the sub-Himalayas. The wood is used for drums and agricultural implements.

Only in Collier's New Encyclopedia

Trezen

a very ancient Greek city, capital of the S. E. district of Argolis. It was the birthplace of THESEUS (q. v.). TROGLODYTE. See CAVE DWELLERS.

Only in Collier's New Encyclopedia

Triacanthina

in ichthyology, a of group Sclerodermi, with three genera, having the range of the family. The skin is covered with small, rough, scalelike scutes ; dorsal, with from four to six spines; a pair of strong movable ventral spines joined to the pelvic bone.

Only in Collier's New Encyclopedia

Triacanthus

in ichthyology, a genus of Triacanthina, with five species ranging from the Australian seas to the N. of China. T. brevirostris, from the Indian Ocean, is the most common. TRIÆNOPS, in zoology, a genus of Phyllorhininæ, with one species from Persia and another from East Africa. Noseleaf, horse-shoe-shaped in front, tridentate behind; ears without a distinct antitragus, gus, the outer margin of the ear conch arising from the posteriors of the eyelids.

Only in Collier's New Encyclopedia

Triad Society

An ancient esoteric society of China . The candidate scantily clothed, is brought into a dark room by two members, who lead him to the President, before whom he kneels. He is given a living cock and a knife, and in this posture he takes a complicated oath to assist his brethren in any emergency, even at the risk of his life. He then cuts off the head of the cock, and mingles it with his own, the three assisting individuals adding some of their own blood. After being warned that death will be his portion should he divulge the secrets of the society, he is initiated into them, and is entrusted with the signs of recognition which are in triads. For example a member must lift any object with three fingers only. This society, originally altruistic, is now of a political character.

Only in An Encyclopaedia of Occultism

Trial-cast

A simple and inexpensive method of obtaining a trial-cast of pig iron is to possess a gas-blast or other good crucible furnace in which to melt a small sample at quick notice, and cast a bar one inch square, twelve inches long, and another two inches wide, one-eighth inch thick, also twelve inches long. These must be moulded carefully, by the same person every time if possible, in separate flasks, and poured with metal corresponding in temperature on each occasion. If a wedge-like projection two inches long be cast on one or both ends of the square bar, the tendency to chill will be at once determined by the amount of white iron extending from the point inwards, as well as by the edges of the thin bar. The amount of shrinkage is ascertained by careful measurement of the bars; and, if the same gates be used for each cast, the thin bar will serve to show the metal's fluidity. Tensile or transverse strength can be afterwards obtained on the testing-machine. See TESTING-MACHINE; STEEL CASTINGS; GAS-BLAST FURNACE.

Only in The Encyclopedia of Founding

Triangle

in plane geometry, a figure bounded by three straight lines and having consequently three angles. A triangle having two or more equal sides is said to be isosceles. A triangle having a right angle is known as a right-angled triangle. The side opposite the right angle is called the hypotenuse. The side on which a triangle is supposed to rest is called the base. The angle opposite the base is known as the vertex. The altitude of a triangle is the perpendicular distance from the vertex to the base. The area of a triangle may be found by taking one-half the product of the base and altitude. According to one of the most famous propositions of geometry, the square on the hypotenuse of a rightangled triangle is equal to the sum of the squares of the other two sides. No change can be made in the magnitude of an angle of a triangle without changing the length of one side. Carpenters and builders take advantage of this principle in bracing buildings. A brace nailed or mortised across a joint so as to form a triangle prevents the frame of a building from swaying.

Only in Aiton's Encyclopedia