[LB006664], Letter from Thomas Alva Edison to John Bullock, December 14th, 1880

Item

Abstract

Your favor of No 6th was duly rec'd. A machine costing [pound]500 will pass through 250 tons of sand per day requiring one man and a pair of horses. The sand must be dry. It dos not separate white quartz sand. The cheapness of the process depends upon the percentage of black sand.

Recipient

Date

1880-12-14

Decade

1880-1889

Type

Identifier

LB006664

Folder Set

LB006

Title

[LB006664], Letter from Thomas Alva Edison to John Bullock, December 14th, 1880

Microfilm ID

80:436

Publisher

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

Item sets