[LB050333], Letter from Thomas Alva Edison to Erastus Wiman, July 16th, 1891
https://edisondigital.rutgers.edu/document/LB050333
Transcription
July 16, 1891 My Dear Mr. Wiman,- Major Eaton has referred to me your letter of 7th instant. There has never been any trouble with the Separators at Ogden. We do not lose one-tenth of what Heckscher loses in his tailings. Magnetic Separators are the least part of the problem of crushing 2,000 tons of ore in twenty hours. The trouble is the Crushing plant and the training of men. Yours very truly, Tho. A. Edison Erastus Wiman, Esq., #314 Broadway, New York.