Humboldt, Ehrenberg and Gustav Rose also paid in the course of these years short visits to Siberia, and gave a new impulse to the accumulation of scientific knowledge; while Ritter elaborated in his Asien (1832-1859) the foundations of a sound knowledge of the structure of Siberia.
P. Luff obtained apoaconitine, aconine and benzoic acid by hydrolysis; while, in 1892, C. Ehrenberg and A.
Ehrenberg and W.
Ehrenberg, Hamburg and England im Zeitalter der Konigin Elisabeth (Jena, 1896); W.
Thompson, 1830) synonymous with Bryozoa (Ehrenberg, 1831) for a group commonly included with the Brachiopoda in the Molluscoidea (Milne Edwards, 1;843).
Ehrenberg), a genus of lobose Rhizopoda, characterized by a chitinous plano-convex shell, the circular aperture central on the fiat ventral face, and more than one nucleus and contractile vacuole.
Globigerina ooze was recognized as an important deposit as soon as the first successful deep-sea soundings had been made in the Atlantic. It was described simultaneously in 1853 by Bailey of West Point and Ehrenberg in Berlih.
Augsburg was taken, the pass of Ehrenberg was forced, and in a few days the emperor left Innsbruck as a fugitive.
3, e, f); Oecistes Ehrenberg; Lacinularia Schweigger; Conochilus Ehrenberg, with gap postero-ventral and mouth anterodorsal (fig.
Ehrenberg included the Rotifers in his Infusionsthiere, and described and figured with fair precision many of the genera and species.
Ehrenberg, Die Infusionsthiere als vollkommenere Organis- (1838); F.
Plicatilis (the type-species of Ehrenberg) and other forms (51), he finds, however, that this is not the case, but that the organisms exemplified by S.
Subsequently 6 they were termed Bryozoa by Ehrenberg (1831).
Ehrenberg, " Die Korallenthiere des Rothen Meeres " (Berlin, 1834); Abhand.
Besides Kuhschwanz, a peculiar kind of beer, it manufactures tobacco, cigars, shoes and hosiery; and coal-mining is carried on in the neighbourhood, It was the birthplace of the naturalist Christian Gottfried Ehrenberg (1795-1876), and the political economist Hermann Schulze-Delitzsch (1808-1883), to the latter of whom a statue has been erected.
See Wichmann, Geschichte Altonas (2 vols., Alt., 1896); Ehrenberg & Stahl, Altonas topographische Entwickelung (Alt., 1894).
Ehrenberg adds a list of 8 Polygastric Infusoria, 1 fossil infusorian, 5 Phytolitharia and several microscopic fungi.
Muller knew several important forms in 1773, while Ehrenberg in 1830 had advanced to the commencement of a scientific separation and grouping of them, and in 1838 had proposed at least sixteen species, distributing them into four genera.