name.

HELENSBURGH (8), a pleasantly situated watering-place in Dumbarton,
on the Firth of Clyde, at the entrance of the Gareloch, 4 m. N. of
Greenock.

HELENUS, a son of Priam and Hecuba, celebrated for his prophetic
foresight; is said to have deserted his countrymen and joined the Greeks.

HELIAND, an old Saxon poem of the 9th century, of great philological
value, but of no great literary merit; deals with the life and work of
Christ; of the two extant MSS. one is in the British Museum.

HELICON, a mountain in Boeotia, Greece, sacred to Apollo and the
Muses; famous for the fountains on its slopes dedicated to the latter.

HELIGOLAND (2, but rising to 14 in summer), an islet of the North
Sea, 35 m. from the mouths of the Elbe and the Weser; German since 1890;
consists of the _Oberland_, a plateau, with some 400 houses, and the
_Unterland_ on the shore, 206 ft. beneath, with a group of 70 dwellings.
In the summer it is crowded with visitors, bathing being the chief
attraction; fishing is the staple industry of the native Frisians.

HELIODORUS, the most noted and earliest of the Greek romancists,
born at Emesa, Syria; flourished in the second half of the 3rd century
A.D.; his romance "AEthiopica" is a love tale of great beauty and told with
naive simplicity; has had considerable influence over subsequent romance
writers, e. g. Tasso.

HELIOGA`BALUS, a Roman emperor; invested, while yet a youth, with
the Imperial purple by the army in 218; ruled with a show of moderation
at first, but soon gave way to every manner of excess; was after four
years put to death by the Praetorian Guard, and his body thrown into the
Tiber.

HELIOGRAPHY, a method of signalling from distant points by means of
the sun's rays flashed from mirrors; messages can in this manner be
transmitted a distance of 190 m.; it has been found of great practical
value in military operations.

HELIOPOLIS (i. e. City of the Sun), in Egyptian _On_, one of the
oldest and most sacred cities of Egypt; was situated about 10 m. N. of
Cairo, on the eastmost branch of the Nile; it was the centre of Egyptian
learning; Solon and Plato are said to have studied there, and Potiphar
was one of its chief priests; the famous obelisk PHARAOH'S NEEDLE
stands near; and CLEOPATRA'S NEEDLE, now on the Thames Embankment,
was originally of this city. Also the name of Baalbec.

HELIOS, the god of the sun, mistakenly identified with Apollo, but of an
older