subject, of accidents and will have the great advantage of real- after all, resolves itself into the answer to a single ques- izing the important problem of the aeration of the tun- modification of the latter proposed by Mr. Bunau- Varilla. tion: Is the process quite trustworthy to remove the nel,… … zine oxide, or with magnesium chloride, and separate portions, tinted with as many differ- ent colors as may be required, are dashed on to the bottom of a mould so as to produce a veined pattern, which, after filling up the mould. con- stitutes the ornamental surface of the artificial marble. The…
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