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

https://edisondigital.rutgers.edu/document/D8305A

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Title

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

Editor's Notes

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 -"]

Mentioned

Date

1883-01-11

Decade

1880-1889

Type

Folder/Volume ID

D8305-F

Microfilm ID

64:397

Document ID

D8305A

Publisher

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