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Show The Sponge. If you look at the sponao you use for your hath you will see lliat it. is covrredall over with small holes, iili lo re and there toward the top some large ones. Now try to realize that in life this creature, the skeleton of which ym wash yourself wit h, was composed as to its lleshy parts of small cells. The whole struotuiis as it was in li e niiitht be compared to a city intersected hy canals. Kvcr so many lit tie canals guvo entrance to the sea water, which was expelled ex-pelled through the big orilices. In this way it, was managed that 110 large foreign objects could be sucked in, while the sewers, sew-ers, as they might he called, were wide j enough to drive anything out by. Washington Wash-ington Star. |