[LB012433], Letter from Thomas Alva Edison to Robert M Galbraith, May 25th, 1882

https://edisondigital.rutgers.edu/document/LB012433

View document with UniversalViewer   → View document on Archive.org  → Re-use this digital object via a IIIF manifest

Title

[LB012433], Letter from Thomas Alva Edison to Robert M Galbraith, May 25th, 1882

Editor's Notes

I have examined the one you sent me and find it contains about 60% of carbonate of copper 15 ounces of silver per ton. The [hard] other like substances that you ground on a stone is a double oxide of copper and iron.##This is a splendid ore if you have plenty of it. It can be worked right on the spot with a Dynamo machine and steam engine. What is the price of steam coal per ton delivered at Rawlings

Date

1882-05-25

Type

Folder/Volume ID

LB012-F

Microfilm ID

81:732

Document ID

LB012433

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Download CSV | JSON