[D8305A], Letter from Houghton Farm, David Pearce Penhallow to Thomas Alva Edison, January 11th, 1883

Item

Abstract

Would like TAE to construct an apparatus that can obtain a continuous record of soil temperatures through a thermo-electric arrangement (Dr. Draper's suggestion); wrote before on the subject to TAE. [TAE replies: "The Thermo is the best. The spot of Light from a Sim Arm Thomson galvanator - can be used to record photographically on a continuous roll the temperature = It has been done -"]

Mentions

Date

1883-01-11

Decade

1880-1889

Type

Identifier

D8305A

Folder Set

D8305

Title

[D8305A], Letter from Houghton Farm, David Pearce Penhallow to Thomas Alva Edison, January 11th, 1883

Microfilm ID

64:397

Publisher

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