the bar lengthens. The screws, D, When, theretore, the Knob is turned to bring the and 40 tuns per annum; in the whole United States, are to set up the rolls to sujt axles of any dimen- | 500 tuns per annum. From 3,000 to 4,000 tuns are sions. The plates, E, are to draw up the end pieces from the… … is not wellheated and weld- tain lakes in Thibet and in some parts of Persia ed it will show for itself. and China, but the deposit at Borax lake, in Cali- In this operation the grain of the iron is closed as if it was hammered; and I am satisfied it will prove fornia, is probably the largest…
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