The Artizan . Note.—Since writing the foregoing it has occurred to me that I shouldmention the now well ascertained fact that in the puddling furnace someof the phosphorus passes from the charge into the cinder, but by no meansthe \vholeof it. This circumstance led Dr. Percy to propound his theorythat still more of that element existing in the charge as phosphide of ironwas liquated or sweated out after the metal was balled. If there be anytruth iu this supposition, it appears to be confirmed by the results of themode of working to which I have now called your attention. The ballingprocess is
The Artizan . Note.—Since writing the foregoing it has occurred to me that I shouldmention the now well ascertained fact that in the puddling furnace someof the phosphorus passes from the charge into the cinder, but by no meansthe \vholeof it. This circumstance led Dr. Percy to propound his theorythat still more of that element existing in the charge as phosphide of ironwas liquated or sweated out after the metal was balled. If there be anytruth iu this supposition, it appears to be confirmed by the results of themode of working to which I have now called your attention. The ballingprocess is of longer duration, as I have already explained, therefore greatertime is afforded for this supposed liquation of the phosphide. I merelythrow this out as a hint; it is rather soon yet to attempt to form a con-clusive theory. That phosphorus is not got rid of by oxidation in combi-nation with iron is certain, or it would unquestionably be eliminated inthe Bessemer converter, every means hitherto tried having
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