[D8952ABL], Letter from Canadian Copper Co, H P McIntosh to Thomas Alva Edison, April 10th, 1889



Mr. Ritchie has talked with us generally about the efforts and experiments you have been making with regard to the separation of nickel and copper contained in our ores at Sudbury.##I suppose I am only repeating what he has often said to you during the time he has been there, that what we want and most desire is the ability to produce metallic nickel at substantially the same price that it costs to produce copper. There does not seem to be any good reason why this ought not to be done, and there is only one thing necessary and that is, how to do it.##The question of refining works is immediately upon us and it will be impossible for us to defer putting them in process of erection. It is, therefore, of the utmost importance that whatever you can do towards perfecting what we desire, as indicated above, should be done at the earliest moment possible. We want a furnace separation of these metals which will give us quick results. The slow processes used in the leaching process are nw in many respects very objectionable. The whole matter between you and us may be put in two questions; What can you do? How soon can you do it? We will be glad to hear from you at once. Yours Truly, the Canadian Copper Co. By H. P. McIntosh [TAE marg: You should not delay any proposed works on my account I have taken the subject up actively as an experimental problem & can give no data when I can accomplish it-- All I can do is to keep at it]








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[D8952ABL], Letter from Canadian Copper Co, H P McIntosh to Thomas Alva Edison, April 10th, 1889

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

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