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[LB006752], Letter from Thomas Alva Edison to James Arthur, January 4th, 1881

Title: [LB006752], Letter from Thomas Alva Edison to James Arthur, January 4th, 1881
Editor's Notes: Your favor of the 4th ult was duly rec'd. The process you refer to is for working auriferous iron or black sand dry. The machine costs [pound] 500 and the capacity is 150 tons daily at a cost of about [pound]2 outside of carting sand to the apparatus--which works up to 90&. Royalty charged is 1/2 pense per ton.
Author: Edison, Thomas Alva
Recipient: Arthur, James
Date: 1881-01-04
Type: Letter
Subject: Patent assignments, licenses, and royalties; Metals and minerals; Ore milling and separation
Folder ID: LB006-F
Microfilm ID: 80:459
Document ID: LB006752
URL: https://edisondigital.rutgers.edu/document/LB006752
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Has Version: Archive.org Viewer, Microfilm Series Reel 80
License: CC0 1.0 Universal

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