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Zeiodite

This substance is made by mixing 20 to 30 parts roll sulphur with 24 parts powdered glue or pumice, which forms of water and the strongest acids. Prof. R.

Boettger recommends it, therefore, for making water-tight and air-tight cells for galvanic batteries. 2214. Cement for Closing Cracks in Stoves, etc. A useful cement for closing up cracks in stove plates, stove doors, etc., is prepared by mixing finely-pulverized iron, such as can be procured at the druggists, with liquid water-glass, to a thick paste, and then coating the cracks with it. The hotter the