of an interesting period
of European history (1553-1617).

THOUSAND ISLANDS, 2000 islands which stud the river St. Lawrence
below Kingston, at the outlet of the river from Lake Ontario.

THRACE, in ancient Greece, was a region, ill defined, stretching N.
of Macedonia to the Danube, and W. of the Euxine (Black Sea); appears
never to have been consolidated into one kingdom, but was inhabited by
various Thracian tribes akin to the Greeks, but regarded by them as
barbarians; since the capture of Constantinople by the Turks the northern
portion of Thrace has been annexed to Eastern Roumelia, while the
remainder has continued a portion of the Turkish empire.

THRASYBULUS, famous Athenian general and democratic statesman; came
to the front during the later part of the Peloponnesian War; took an
active share in overturning the oligarchy of the Four Hundred, and in
recalling Alcibiades (411 B.C.); was exiled by the Thirty Tyrants, and
withdrew to Thebes, but subsequently was permitted to return, and later
was engaged in commanding Athenian armies against Lesbos and in support
of Rhodes; was murdered (389 B.C.) by natives of Pamphylia.

THREE HOURS' AGONY, a service held on Good Friday from 12 noon till
3 o'clock to commemorate the Passion of Christ.

THREE RIVERS (9), capital of St. Maurice Co., Quebec, 95 m. NE. of
Montreal; does a considerable trade in lumber, iron-ware, &c.; is the
seat of a Roman Catholic bishop.

THRING, EDWARD, a celebrated educationist, born at Alford Rectory,
Somersetshire; educated at Eton and Cambridge, where he obtained a
Fellowship; entered the Church, and served in various curacies till in
1853 he began his true lifework by an appointment to the head-mastership
of Uppingham School, which he raised to a high state of efficiency, and
stamped with the qualities of his own strong personality, as did Arnold
at Rugby; published various educational works, "The Theory and Practice
of Teaching," "Addresses," "Poems and Translations," &c. (1821-1887).

THROGMORTON, SIR NICHOLAS, English diplomatist; was ambassador in
Paris under Elizabeth, and afterwards to Scotland; fell into disgrace as
involved in an intrigue for the marriage of Mary, Queen of Scots, with
the Duke of Norfolk (1513-1571).

THUCYDIDES, historian of the Peloponnesian War, born in Athens nine
years after the battle of Salamis, of a wealthy family; was in Athens
during the plague of 430 B.C.; was seized, but recovered; s