[LB048001], Letter from Thomas Alva Edison to Israel Dodd Condit, Jr., February 27th, 1891
https://edisondigital.rutgers.edu/document/LB048001
Transcription
February 27, 1891. I D. Condit, Jr., Esq. Milburn, N.J. Dear Sir:— On my return to the Laboratory a few days ago after an absence of several weeks your letter of 9th instant was handed to me, and I have read the same with interest. You refer to the Coast sands of California and Oregon. The trouble with these is that they carry about $1.50 per ton, and only forty per cent of the black sand is magnetic, the other 60 having weathered to a sort of nonmagnetic hematite, and this interferes with the washing process. The iron ore is too far from civilization to be of value. Yours very truly, Thomas A Edison