"I heard you state that the Porter engines are coming back or are to be sent back from Italy. It will be well for you to know in view of this fact that last evening one A&S and 2 Porter-Allen engines were running on outside circuits, the latter with their governors entirely free and acting independently and with perfect steadiness."

Clarke, Charles Lorenzo

Edison, Thomas Alva

Armington and Sims

Porter, Charles T

1883-01-03

1880-1889

Letter

Engineering

Engines, boilers, prime movers

D8329A

D8329

[D8329A], Letter from Charles Lorenzo Clarke to Thomas Alva Edison, January 3rd, 1883

66:874

Thomas Edison National Historical Park

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