Thebais, the ancient name of southern or Upper Egypt, from its capital Thebes. This division of the country extended from the islands of Elephantine and Philse, near Syene (lat. 24° N.), to Thebaica Phylaee, S. of Her-mopolis Magna (about 27° 40' N.).


See Larceny.


See Caffeine, and Tea.


Theiss (anc. Tibiscus; Hun. Tisza), a river of Hungary, which rises in the northeast, in the county of Marmaros, Hows westward to Tokay, thence S. W. to Szolnok, when it turns S. and enters the Danube S. of Titel, near the southern boundary of Hungary. Its length is upward of 600 m., for most of which it is navigable. Its principal tributaries are the Bod-rog, Hernad, Sajo, and Zagyva on the right, and the Szamos, Koros, and Maros on the left. Its lower course for nearly 300 m. is parallel to the Danube, and about the beginning of the present century the Francis canal was dug from one river to the other, which shortens the route down the Theiss and up the Danube 106 m. The canal has been enlarged, and a branch canal from Sztapar to Neusatz on the Danube, completed in 1875, passes through one of the most fertile districts in southern Hungary. Among the principal towns on the banks of the Theiss are Csongrad, Szegedin, Zenta, and Old Becse.


Themis, in the Greek mythology, a daughter of Uranus and Gaea, married to Zeus. She dwelt in Olympus, and convened the assembly of the gods. She is represented in Homer as the personification of the order of things established by law, custom, and equity. At Thebes she had a sanctuary in common with Zeus Agorasus, and at Olympia in common with the Horse, her daughters.

Theobald Bohm

Theobald Bohm, a German flutist, born in Bavaria in 1802. In 1834 he went to London, and in 1849 returned to his native country, where he entered the private service of the king. He was considered almost without a rival as a flute player, and also set himself the task of perfecting the mechanism of flutes and other reed instruments. His efforts resulted in the construction of what has since been known as the Bohm flute, which has, by reason of the greater accuracy and equality of its scale and the superior facility of the fingering, gradually superseded the old models. Bohm also made several universally accepted improvements in the oboe and the bassoon. As a composer he has acquired a considerable celebrity. He has written several concertos for flute and orchestra, and has published a treatise on the construction of the flute.


Theocritus, a Greek poet, born in Syracuse, who flourished about 270 B. C. He went to Alexandria, and secured the favor of Ptolemy Philadelphus, but returned to Syracuse during the reign of Hiero H. He wrote in a mixed dialect in which the Doric predominated, and was the creator of pastoral poetry as a department of literature. There are extant 30 poems, called by the general name of "Idyls," which are attributed to him, and 22 epigrams. He had several imitators, of whom the greatest was Virgil. The first edition, containing only 18 idyls, appeared at Milan probably in 1493, and the Aldine edition in 1495. Among the more important subsequent editions are those of Reiske (2 vols., Leipsic, 1765-'6), Warton (Oxford, 1770), and Paley (Cambridge, 1863). The principal English translations of the poems are those of Creech (London, 1681), Fawkes (1767), Polwhele (1786), Chapman (1836), and Calverly (1869).