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Updated: June 25, 2025
Ten years had developed in him that graceful languor which at four-and-twenty was only beginning to get mastery over the energies of a well-built frame. 'This stuff here, he said, pointing to an open box full of mud, 'is silt from down the Thames. It's positively loaded with diatomaceoe, you remember our talking about them when you were last here? I am working at the fabric of the valves.
Nor is the sustenance and nutrition of the animal kingdom the only function these minute productions may perform; they may also be the purifiers of the vitiated atmosphere, and thus execute in the Antarctic latitudes the office of our trees and grass turf in the temperate regions, and the broad leaves of the palm, &c., in the tropics." ... With respect to the distribution of the Diatomaceoe, Dr.
Ehrenberg, in fact, had shown that the extensive beds of "rotten-stone" or "Tripoli" which occur in various parts of the world, and notably at Bilin in Bohemia, consisted of accumulations of the silicious cases and skeletons of Diatomaceoe, sponges, and Radiolaria; he had proved that similar deposits were being formed by Diatomaceoe, in the pools of the Thiergarten in Berlin and elsewhere, and had pointed out that, if it were commercially worth while, rotten-stone might be manufactured by a process of diatom-culture.
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