Regarding the carbonizing.##I recommend that the entire preliminary be done at Bloomfield and the finish here.##It will be very difficult to keep matters quiet where a large power is needed as is the case for the first heats. There will always have to be mechanics and outsiders employed.##Whereas if the preliminary alone is carred on it can be kept absolutely quiet.##The Sawyer-Mann Co. knows that do something in the house in the yard but has not yet found out what.##From [overstruck: fibres-carbons before and after dipping a good guess could be made.##If you agree with me Martin can go to Bloomfield and all Lawson's ovens he sent there quietly via the laboratory.

Edison Lamp Co

Upton, Francis Robbins

Edison, Thomas Alva

Sawyer-Man Electric Co

1888-08-01

1880-1889

Letter

Competition and market structure

Manufacturing

Incandescent lamp

MU122

MU11

[MU122], Letter from Edison Lamp Co, Francis Robbins Upton to Thomas Alva Edison, August 1st, 1888

95:841

Thomas Edison National Historical Park

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