o. 8 is gasket should be laid up while reading this descrip- shown loosely drawn up to its place; the operator's tion, and we hope all points are made clear and sim- hand going under all the strands for No. 1. This ple, so that a little practice will, as in all other cases, strand is to be brought… … cess is founded. It was discovered some time since by Deville that If oxide of iron is mixed with wrought Fig. 7. Thus the principle of this gasket is illustrated, Fee,. 3 iron, the wrought iron will melt at much lower tem- for it is only necessary to go between each alternate perature than it will…
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