Page:Encyclopædia Britannica, Ninth Edition, v. 11.djvu/668

634 nurseries as early as 1812, has larger but less fragrant flowers than Z/, peruvianum. The species commonly grown in Russian gardens is /. suaveolens, which has white, highly-fragrant flowers. Heliotropes may be propagated either from seed, or, as commonly, by means of cuttings of young growths taken an inch or two in length. The plants require in hot weather a pleutiful supply of water, and in winter careful protection from frost, which soon kills them. If favoured with a light rich soil and a warm conservatory, in which they may be grown in a border, or against a pillar, wall, or trellis, they bloom all the year round. The formation of flowers is promoted by a sunny situation, Many florists’ varieties of heliotrope are now under cultivation.

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1em  HELIOTROPE, or, a cryptocrystalline variety of quartz, dark’green in colour, with small spots of red jasper, resembling drops of blood. The name, from the Greek 7Atos, sun, and zpére, to turn, is stated by Pliny (Vat. Hist., xxxvii. 60) to be due to its giving, when thrown into water, a red reflexion of the light of the sun. The modern heliotrope, however, is Pliny’s prastus (op. cit., xxxvi. 34); and what he terms heliotrope was apparently a leek-green prase or plasma, abundantly veined with blood- red jasper. Heliotropeis found in the Isle of Rum, and in Mull of Cantyre, Argyllshire, and in several foreign locali- ties. It is of comraun occurrence in the trap-rocks of the Deccan. Medicinal and other virtues were formerly ascribel to the stone. Itis used for signet rings and a variety of ornamental articles.  HELL. See,.  HELLANICUS, the most important of the Greek logographers, was a native of Mytilenc. His father was named Andromenes or Aristomenes. His life, which, as Lucian tells, lasted eighty-five years, extends over the, but the date of his birth is uncertain, and the circumstances of his career are unknown. If the quotatiun in the scholiast on Aristoph., tun., 706, can be trusted (fr. 80), Hellanicus in one of his works referred to the battle of Arginuss. In that case (–) the dates assigned by Miiller (Fragm. Mist. Gr., i. p. xxxiv.), following the author of the Vita Luripidis, must be approximately correct. On the other hand Thucydides (i. 93), who died in, criticizes the work in which this statement might be expected to occur, which leaves a very narrow interval for the work to appear and acquire reputation enough to be taken notice of by Thucydides; while the style of the reference certainly suggests at first sight that Hella- nicus was dead when Thucydides was writing. If on these grounds we disregard the scholiast, we may on the authority of Pamphila assign – as the limits of his life. Suidas says that he died at Perperene, a town on the Gulf of Adramyttium, and that he lived for some time at the Macedonian court along with Herodotus. If the latter fact be true, the time to which Suidas assigns it, viz., during the reign of Amyntas (–), is impossible.

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