SUDD

This article appears in Volume V26, Page 20 of the Encyclopedia Britannica.

Encyclopedia Britannica - Main :: STE-SUS

SUDD , or SADo (an Arabic word meaning "to dam" ), the name given to the vegetable obstruction which has at various

dates

DATES

closed the waters of the Upper Nile to navigation. It is composed of masses of papyrus and um suf (Vossia procera) and the earth adhering to the roots of those reeds. Mingled with the papyrus and urn suf (Arabic for " mother-of-wool") are small

swimming

SWIMMING (from " swim," A.S. swimman, the root being common in Teutonic languages)

plants and the light brittle ambach. The papyrus and um suf grow abundantly along the Nile banks and the connected lagoons between 70 N. and 13 N. Loosened by storms these reeds

drift

DRIFT (from "drive ")

until they

lodge

LODGE
LODGE, EDMUND (1756-1839)
LODGE, H
HENRY
- HENRY
- HENRY (1129-1195)
- HENRY (c. 1108-1139)
- HENRY (c. 1174–1216)
- HENRY (Fr. Henri; Span. Enrique; Ger. Heinrich; Mid. H. Ger. Heinrich and Heimrich; O.H.G. Haimi- or Heimirih, i.e. " prince, or chief of the house," from O.H.G.
  heim
  - HEIM, ALBERT VON ST GALLEN (1849- )
  - HEIM, FRANCOIS JOSEPH (1787-1865)
  , the Eng.
  home
  - HOME
  - HOME, DANIEL DUNGLAS (1833-1886)
  - HOME, EARLS OF
  , and rih, Goth. reiks; compare Lat. rex " king "—" rich," therefore " mig
- HENRY, EDWARD LAMSON (1841– )
- HENRY, JAMES (1798-1876)
- HENRY, JOSEPH (1797-1878)
- HENRY, MATTHEW (1662-1714)
- HENRY, PATRICK (1736–1799)
- HENRY, PRINCE OF BATTENBERG (1858-1896)
- HENRY, ROBERT (1718-1790)
- HENRY, VICTOR (1850– )
- HENRY, WILLIAM (1795-1836)
_CABOT_1850_.html">LODGE,
HENRY
- HENRY
- HENRY (1129-1195)
- HENRY (c. 1108-1139)
- HENRY (c. 1174–1216)
- HENRY (Fr. Henri; Span. Enrique; Ger. Heinrich; Mid. H. Ger. Heinrich and Heimrich; O.H.G. Haimi- or Heimirih, i.e. " prince, or chief of the house," from O.H.G.
  heim
  - HEIM, ALBERT VON ST GALLEN (1849- )
  - HEIM, FRANCOIS JOSEPH (1787-1865)
  , the Eng.
  home
  - HOME
  - HOME, DANIEL DUNGLAS (1833-1886)
  - HOME, EARLS OF
  , and rih, Goth. reiks; compare Lat. rex " king "—" rich," therefore " mig
- HENRY, EDWARD LAMSON (1841– )
- HENRY, JAMES (1798-1876)
- HENRY, JOSEPH (1797-1878)
- HENRY, MATTHEW (1662-1714)
- HENRY, PATRICK (1736–1799)
- HENRY, PRINCE OF
  BATTENBERG
  - BATTENBERG
  (1858-1896)
- HENRY, ROBERT (1718-1790)
- HENRY, VICTOR (1850– )
- HENRY, WILLIAM (1795-1836)
CABOT (1850– )
LODGE, SIR OLIVER JOSEPH (1851– )
THOMAS
_c_15581625_.html">LODGE,
THOMAS
(c. 1558–1625)

on some obstruction and form a dam across the channel, converted by fresh arrivals into blocks that are sometimes 25 M. in length, and extend 15 to 20 ft. below the surface. These masses of decayed vegetation and earth, resembling peat in consistency, are so much compressed by the force of the current that men can walk over them every-where. In parts elephants could

cross

CROSS

them without danger. The pressure of the water at length causes the formation of a side channel or the bursting of the sudd. (For sudd cutting see NILE.)
In the Bahr-el-Ghazal the sudd, being chiefly composed of small

swimming

SWIMMING (from " swim," A.S. swimman, the root being common in Teutonic languages)

plants, is of less formidable nature than that of the main stream.
Consult, O. Deuerling, Die Pflanzenbarren der afrikanischen Flusse (Munich, 1909), a valuable monograph; and the bibliography under NILE, especially Captain H. G. Lyons, The Physiography of the Nile and its Basin (Cairo, 1906).

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