[D8405K], Letter from North Carolina. Penitentiary, William Jackson Hicks to Thomas Alva Edison, October 6th, 1884
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Title
[D8405K], Letter from North Carolina. Penitentiary, William Jackson Hicks to Thomas Alva Edison, October 6th, 1884
Editor's Notes
[letterhead: North Carolina State Penitentiary Office of Architect and Warden - Wm. J. Hicks] Is a lightning rods a positive protection to buildings? Would a lake provide grounding? [TAE marg: They are a positive protection. A large plate buried in the Earth at the Edge of the lake & connected by 3 or 4 No 6 galvanized telegh wires (buried) with the rods would answer The ground plate ought to have at least 200 feet surface E]
Recipient
Date
1884-10-06
Type
Folder/Volume ID
D8405-F
Microfilm ID
71:406
Document ID
D8405K
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University