[D8845AAM], Letter from J H Pratt to Thomas Alva Edison, March 22nd, 1888


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[D8845AAM], Letter from J H Pratt to Thomas Alva Edison, March 22nd, 1888

Editor's Notes

"Will you be so kind as to send me some particulars of your recently perfected process for saving fine gold in sulphurated stating what is the lowest grades of one in gold you can treat successfully. Do you attempt to save the sulphur. Can the process be used at once, and what is the cost of same? If you have any circulars giving description of same, I shall be glad to have copies." t "P.S. We have considerably quantitites of Iron Pyrite in this section running $10.00 to $20.00 in gold, per ton. P." TAE marg: I shall at present work the process here and am erecting a mill. You might send me some auriferous iron puriter[?] sample. Is there much of the ore roughly what could it be delivered to a mill in vicinity per ton."





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Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
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