te which figures prominently on the This invention is a gas regulator for controlling the sup- cury in the chamber, D, which drives the mercury through wrong side of the profit and loss account. ply of gasused in steam boilers as fuel. D, in the engrav- The object of the device is to insure the… … winds, become hide-bound. That is, the old bark becomes particulars regarding agencies, rights, etc., address J. K, ing, is a mercury chamber, which is connected with the indurated—cannot expand—and the tree suffers much in Somes & Co., Springfield, Mass. steam room of the boiler by means of the…
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