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And this statement has since received full confirmation from Pasteur. On the other hand, Schwann, Schroeder and Dusch, and Pasteur, have amply proved that air may be allowed to have free access to beer-wort, without exciting fermentation, if only efficient precautions are taken to prevent the entry of particles of yeast along with the air.
The people cheered and the band played a Dusch such a flourish of trumpets as is given in Germany when a health is drunk. The travellers then went to the Prince's "former little house." The Queen writes, "It was such a pleasure for me to be able to see this house.
He strained air through cotton-wool, and found, as Schroeder and Dusch had done, that it contained nothing competent to give rise to the development of life in fluids highly fitted for that purpose. But the important further links in the chain of evidence added by Pasteur are three.
Indeed, Osmin, one of the most original characters, is entirely his own creation, at Fischer's suggestion." Weber resembled Wagner, among other things, in the habit of carrying plans for operas in his head for many years. Thus we read that while on the look out for a subject for an opera he and Dusch hit upon "Der Freischütz," a story by Apel, then just published.
The researches of Schroeder and Dusch in 1854, and of Schroeder alone, in 1859, cleared up this point by experiments which are simply refinements upon those of Redi. A lump of cotton-wool is, physically speaking, a pile of many thicknesses of a very fine gauze, the fineness of the meshes of which depends upon the closeness of the compression of the wool.
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