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[D8006P], Letter from S G Hubert to Thomas Alva Edison, April 12th, 1880

Title: [D8006P], Letter from S G Hubert to Thomas Alva Edison, April 12th, 1880
Editor's Notes: What fraction of HP nec for 1 ELight equal to 1 coal lamp for 1 hour? Making "hand compressed air engine" to allow for rural & agricultural uses. Marg: "1/5 of hp will do."
Author: Hubert, S G
Recipient: Edison, Thomas Alva
Date: 1880-04-12
Type: Letter
Subject: Engines, boilers, prime movers; Electric light and power
Folder ID: D8006-F
Microfilm ID: 53:314
Document ID: D8006P
URL: https://edisondigital.rutgers.edu/document/D8006P
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Has Version: Archive.org Viewer, Microfilm Series Reel 53