of Chicago University have given a valuable general account of the
morphology of Angiosperms as far as concerns the flower, and the
series of events which ends in the formation of the seed (_Morphology
of Angiosperms_, Chicago, 1903).
AUTHORITIES.--The reader will find in the following works details
of the subject and references to the literature: Bentham and Hooker,
_Genera Plantarum_ (London, 1862-1883); Eichler, _Bluthendiagramme_
(Leipzig, 1875-1878); Engler and Prantl, _Die naturlichen
Pflanzenfamilien_ (Leipzig, 1887-1899); Engler, _Syllabus der
Pflanzenfamilien_, 3rd ed. (Berlin, 1903); Knuth, _Handbuch der
Blutenbiologie_ (Leipzig, 1898, 1899); Sachs, _History of Botany_,
English ed. (Oxford, 1890); Solereder, _Systematische Anatomie
der Dicotyledonen_ (Stuttgart, 1899); van Tieghem, _Elements de
botanique_; Coulter and Chamberlain, _Morphology of Angiosperms_ (New
York, 1903).
(I.B.B.; A.B.R.)
ANGKOR, an assemblage of ruins in Cambodia, the relic of the ancient
Khmer civilization. They are situated in forests to the north of the
Great Lake (Tonle-Sap), the most conspicuous of the remains being the
town of Angkor-Thom and the temple of Angkor-Vat, both of which lie on
the right bank of the river Siem-Reap, a tributary of Tonle-Sap.
Other remains of the same form and character lie scattered about the
vicinity on both banks of the river, which is crossed by an ancient
stone bridge.
Angkor-Thom lies about a quarter of a mile from the river. According
to Aymonier it was begun about A.D. 860, in the reign of the Khmer
sovereign Jayavarman III., and finished towards A.D. 900. It consists
of a rectangular enclosure, nearly 2 m. in each direction, surrounded
by a wall from 20 to 30 ft. in height. Within the enclosure, which
is entered by five monumental gates, are the remains of palaces and
temples, overgrown by the forest. The chief of these are:--
(1) The vestiges of the royal palace, which stood within an enclosure
containing also the pyramidal religious structure known as the
Phimeanakas. To the east of this enclosure there extends a terrace
decorated with magnificent reliefs.
(2) The temple of Bayon, a square enclosure formed by galleries with
colonnades, within which is another and more elaborate system of
galleries, rectangular in arrangement and enclosing a cruciform
structure, at the centre of which rises a huge tower with a circular
base. Fifty towers, decorated with quadruple faces of Br
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