oti EAL ‘ ee I ee ne NUMBER 15. VOLUME XI. excess of the power of the water to hold them THE in solution, and also tends to the same results Scientific American, —their deposition. This is the philosophy PUBLISHED WEEKLY … practically tested it. It is now attracting con- point. These come in contact in the upper apart, and kept in their position by iron rings, siderable attention in this city, and is here pre- and rises through the pebbles, L, placed intwo part of the apparatus, at the entrance to a coil 2. The…
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