1881); a graphically written account of
Moorish dominion in Spain, which shed new light on many obscure points,
and has remained the standard work on the subject. Dozy's _Recherches sur
l'histoire et la litterature de l'Espagne pendant le moyen age_ (Leiden, 2
vols., 1849; 2nd and 3rd ed., completely recast, 1860 and 1881) form a
needful and wonderfully trenchant supplement to his _Histoire des
Mussulmans_, in which he mercilessly exposes the many tricks and
falsehoods of the monks in their chronicles, and effectively demolishes a
good part of the Cid legends. As an Arabic scholar Dozy stands well-nigh
unsurpassed in his _Supplement aux dictionnaires arabes_ (Leiden,
1877-1881, 2 vols.), a work full of research and learning, a storehouse of
Arabic lore. To the same class belongs his _Glossaire des mots espagnols
et portugais, derives de l'Arabe_, edited with Dr W. H. Engelmann of
Leipzig (Leiden, 1866; 2nd ed., 1868), and a similar list of Dutch words
derived from the Arabic. Dozy also edited Al Makkari's _Analectes sur
l'histoire et la litterature des Arabes d'Espagne_ (Leiden, 1855-1861, 2
vols.), and, in conjunction with his friend and worthy successor,
Professor De Goeje, at Leiden, Idrisi's _Description de l'Afrique et de
l'Espagne_ (1866), also the _Calendrier de Cordoue de l'annee 961; texte
arabe et ancienne traduction latine_ (Leiden, 1874). _Het Islamisme_
(_Islamism_; Haarlem, 1863, 2nd ed., 1880; French translation) is a
popular exposition of Mahommedanism, of a more controversial character;
and _De Israelieten te Mekka_ ("The Israelites at Mecca," Haarlem, 1864)
became the subject of a rather heated discussion in Jewish circles. Dozy
died at Leiden in May 1883. (H. TI.)

DRACAENA, in botany, a genus of the natural order Liliaceae, containing
about fifty species in the warmer parts of the Old World. They are trees
or shrubs with long, generally narrow leaves, panicles of small whitish
flowers, and berried fruit. The most remarkable species is _Dracaena
Draco_, the dragon-tree of the Canary Isles, which reaches a great size
and age. The famous specimen in Teneriffe, which was blown down by a
hurricane in 1868, when measured by Alexander von Humboldt, was 70 ft.
high, with a circumference of 45 ft. several feet above the ground. A
resin exuding from the trunk is known as dragon's blood (q.v.).

Many of the cultivated so-called Dracaenas belong to the closely-allied
genus _Cordyline_. They are grown