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[LB015334A], Letter from Thomas Alva Edison, Samuel Insull to Francis Robbins Upton, February 19th, 1883

Title: [LB015334A], Letter from Thomas Alva Edison, Samuel Insull to Francis Robbins Upton, February 19th, 1883
Editor's Notes: Referring to [average] card lately received Mr Edison writes as follows:##"I [----] failed to get a good deposit carbon with cyanide mercury. I guess there is too much water in cyanide better make long [cuts] with phosphorus [a---ydrid] near [hull] and cyanide beyond so if water gives off phosphoris will absorb. It only wants small amount gas
Author: Insull, Samuel; Edison, Thomas Alva
Recipient: Upton, Francis Robbins
Date: 1883-02-19
Type: Letter
Subject: Incandescent lamp
Folder ID: LB015-F
Microfilm ID: 82:177
Document ID: LB015334A
URL: https://edisondigital.rutgers.edu/document/LB015334A
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 82
License: CC0 1.0 Universal

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