Online Encyclopedia

Search over 40,000 articles from the original, classic Encyclopedia Britannica, 11th Edition.

ROSE

Online Encyclopedia
Originally appearing in Volume V23, Page 728 of the 1911 Encyclopedia Britannica.
» Make a correction to this article.
» Add information or comments to this article.
Spread the word: del.icio.us del.icio.us it!

ROSE , the name of a distinguished See also:

family of See also:German chemists. See also:VALENTINE RosE the See also:elder was See also:born on the 16th of See also:August 1736 at Neu-See also:Ruppin, and died on the 28th of See also:April 1771 at See also:Berlin, where he was an See also:apothecary and for a See also:short See also:time before his See also:death See also:assessor of the Ober Collegium Medicurn. He was the discoverer of Rose's fusible See also:metal " (see FUSIBLE METAL). His son, VALENTINE RosE the younger, born on the 31st of See also:October 1762 at Berlin, was also an apothecary in that See also:city and assessor of the Ober Collegium Medicum from 1797. It was he who in 1800 proved that sulphuric See also:ether contains no See also:sulphur. He died in Berlin on the loth of August 1807, leaving four sons, one of whom, Heinrich, was a distinguished chemist, and another, Gustav, a crystallographer and mineralogist. HEINRICH ROSE, born at Berlin on the 6th of August 1795, began to learn See also:pharmacy in See also:Danzig, where, during the See also:siege of 1807, he nearly lost his See also:life from typhus. Like his See also:brother he served in the See also:campaign of 1815. During the summer of the following See also:year he studied at Berlin under M. H. See also:Klaproth, a devoted friend of the family, and in the autumn entered a pharmacy at Iitau. In 1819 he went to See also:Stockholm, where he spent a year and a See also:half with J.

J. See also:

Berzelius, and in 1821 he graduated at See also:Kiel. Returning to Berlin he became a Privatdozent in the university in 1822, extraordinary See also:professor of See also:chemistry in 1823 and See also:ordinary professor in 1835, and there he died on the 27th of See also:January 1864. He devoted himself especially to inorganic chemistry and the development of See also:analytical methods, and the results of his See also:work are summed up in the successive issues of his classical work, Ausfiihrliches Handbuch der analytischen Chemie, of which he published the first edition at Berlin in 1829, and the See also:sixth, practically a new work in See also:French, at See also:Paris in 1861. He was the discoverer of See also:antimony pentachloride, and mention may also be made of his researches on the See also:influence of the See also:mass-See also:action of See also:water in many reactions, carried out before the investigations of Guldberg and Waage in 1867. GUSTAV RosE, born at Berlin on the 18th of See also:March 1798, began his career as a See also:mining engineer, but soon turned his See also:attention to theoretical studies. A See also:pupil of Berzelius like his brother, he graduated in 182o at Berlin University where he became successively Privatdozent (1823), extraordinary professor of See also:mineralogy (1826) and ordinary professor (1839). In 1856 he succeeded to the directorship of the Royal Mineralogical Museum at Berlin, and he helped to found the German See also:Geological Society, of which he was See also:president from 1863 until the end of his life. He made many journeys in different parts of See also:Europe for the See also:sake of mineralogical study, and in 1829 with A. von See also:Humboldt and C. G. See also:Ehrenberg (1795-1876), professor of See also:medicine at Berlin, took See also:part in an expedition to the Ural and See also:Altai mountains and the See also:Caspian See also:Sea, which yielded See also:information of See also:primary importance concerning the mineralogy of the See also:Russian See also:Empire. His work covered every See also:branch of mineralogy, including See also:crystallography and the artificial formation of minerals.

The See also:

science of petrography, according to See also:Gerhard vom See also:Rath, originated with him. He was the first in his own See also:country to use the reflecting See also:goniometer for the measurement of the angles of crystals, and to See also:teach the method of studying rocks by means of microscopic sections. He also devoted See also:special attention to meteorites and to the problem presented by the different structure of the stony See also:matter in them and in the crust of the See also:earth, and just before his death, which took See also:place at Berlin on the 15th of See also:July 1873, he was engaged in investigating the formation of the See also:diamond. In addition to many scientific See also:memoirs he published Elemente der Krystallographie (183o) ; Mineralogischgeognostische Reise nach dem Ural, dem Altai and dem Kaspische Meere (1837) vol. i.; (1842) vol. ii.; Das Krystallo-chemische See also:Mineral-See also:system (1852); and Beschreibung and Eintheilungder Meteoriten (1863).

End of Article: ROSE

Additional information and Comments

There are no comments yet for this article.
» Add information or comments to this article.
Please link directly to this article:
Highlight the code below, right click, and select "copy." Then paste it into your website, email, or other HTML.
Site content, images, and layout Copyright © 2006 - Net Industries, worldwide.
Do not copy, download, transfer, or otherwise replicate the site content in whole or in part.

Links to articles and home page are always encouraged.

[back]
ROSCREA 		[next]
ROSE (Rosa)

Site © 2006 - Net Industries