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EHRENBERG, CHRISTIAN GOTTFRIED (1795-...

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Originally appearing in Volume V09, Page 130 of the 1911 Encyclopedia Britannica.
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EHRENBERG, See also:CHRISTIAN GOTTFRIED (1795-1876) , See also:German naturalist, was See also:born at See also:Delitzsch in See also:Saxony on the 19th of See also:April 1795. After studying at See also:Leipzig and See also:Berlin, where he took the degree of See also:doctor of See also:medicine in 1818, he was appointed See also:professor of medicine in the university of Berlin (1827). Mean-while in 1820 he was engaged in a scientific exploration conducted by See also:General von Minutoli in See also:Egypt. They investigated parts of the Libyan See also:desert, the See also:Nile valley and the See also:northern coasts of the Red See also:Sea, where Ehrenberg made a See also:special study of the See also:corals. Subsequently parts of See also:Syria, See also:Arabia and See also:Abyssinia were examined. Some results of these travels and of the important collections that had been made were reported on by See also:Humboldt in 1826; and afterwards Ehrenberg was enabled to bring out two volumes Symbclae physicae (1828-1834), in which many particulars of the mammals, birds, See also:insects, &c., were made public. Other observations were communicated to scientific See also:societies. In 1829 he accompanied Humboldt through eastern See also:Russia to the See also:Chinese frontier. On his return he gave his See also:attention to microscopical researches. These had an important bearing on some of the infusorial earths used for polishing and other economic purposes; they added, moreover, largely to our knowledge of the microscopic organisms of certain See also:geological formations, especially of the See also:chalk, and of the See also:modern marine and See also:freshwater accumulations. Until Ehrenberg took up the study it was not known that considerable masses of See also:rock were composed of See also:minute forms of animals or See also:plants. He demonstrated also that the See also:phosphorescence of the sea was due to organisms.

He continued until See also:

late in See also:life to investigate the microscopic See also:organ-isms of the deep sea and of various geological formations. He died in Berlin on the 27th of See also:June 1876.

End of Article: EHRENBERG, CHRISTIAN GOTTFRIED (1795-1876)

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