ary plates, preferably of tempered steel, having concave Ice oil mars. construction, but preferably should have a hermetically and convex serrated working edges, and one square end At a recent meeting of the Academy of Sciences, Paris, sealed top and bottom, the body having a strap at- to serve as… … cumulators in existence at the time his experiments COTTBSEN'S OIL CAN. were made was sufficiently light, and a new one had therefore to be devised. After many experiments he plates, and riveting the wires down upon the outer tached to the rear at or near the base, which, besides found that by…
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