Trismegistus

See Hermes Trismegistus.

Trombone

Trombone, a brass wind instrument, supposed to be identical with the ancient sack-but, which constitutes one form of the trumpet. By means of sliding tubes great depth and power of tone are produced, and the instrument is capable of splendid effect. Trombones are of three kinds, alto, tenor, and bass; the first having a compass from 0, the second space in the bass, to G, an octave above the treble clef; the second from B, the second line in the bass, to A, the second space in the treble; and the third from 0, an octave below the second space in the bass, to G, the second line in the treble.

Trondhjem, Or Throndlyem

See Drontheim.

Tropaeolum

See Nastuetium.

Tropics (Gr. Rpoirr A Turning)

Tropics (Gr. Rpoirr A Turning), in astronomy, two circles parallel to the equator, at such distance from it as is equal to the greatest recession of the sun from it toward the poles, or to the sun's greatest declination. That in the northern hemisphere is called the tropic of Cancer, and that in the southern the tropic of Capricorn, from their touching the ecliptic in the first points of those signs. (See Cancer, and Capricoen.) It is between the tropics that the sun's path is circumscribed, its annual movement being from one to the other and back again in the ecliptic. - In geography, the tropics, also known as that of Cancer and that of Capricorn, are the two parallels of latitude (about 23° 28' N. and S.) over which the sun is vertical at the solstices. (See Solstice).

Troppau

Troppau, a city and the capital of Austrian Silesia, on the Oppa, 35 m. N. E. of Olmutz; pop. in 1870, 16,608. It has six Catholic churches, a palace, a gymnasium with a large library, a museum, and manufactories of beet sugar, flax, and cloth. A congress of sovereigns was held here from Oct. 20 to Dec. 20, 1820, preliminary to that of Laybach. - The former duchy of Troppau, having been divided into the principalities of Troppau and Jagerndorf, was partly annexed to Prussia in Frederick the Great's conquest of Silesia, and forms the S. W. part of Prussian Silesia, with Leobschutz, of the Jagerndorf division, as capital. The territory which remained to Austria after the peace of 1763 constitutes most of the N. part of Austrian Silesia, comprising, besides the capital, Jagerndorf and other manufacturing towns.

Troubadours

See Peovencal Language And Llteeature.

Troup

Troup, a W. county of Georgia, bordering on Alabama, and intersected by the Chattahoochee river; area, about 370 sq. m.; pop. in 1870, 17,632, of whom 11,224 were colored. The surface is hilly and the soil generally fertile. It is intersected by the Atlanta and West Point railroad. The chief productions in 1870 were 26,645 bushels of wheat, 162,946 of Indian corn, 34,514 of oats, 29,290 of sweet potatoes, and 9,963 bales of cotton. There were 680 horses, 1,698 mules and asses, 1,519 milch cows, 3,027 other cattle, 1,203 sheep, and 6,516 swine; 1 manufactory of boots and shoes, 2 of cotton goods, 1 of iron castings, 2 of machinery, and 3 saw mills. Capital, La Grange.