30-38
6) Orange Herald.
8) TAE note Edison Electric Light Co, July 1887, Conot,
p.
15) TAE Review Reviews, Oct 1910, 100829, 277.
4) Batchelor Diary, 1336, Sept 1887, pp.
2) TAE Hood Wright, Nov 1887, N871115.
3) TAE Ore Milling Syndicate, Feb 1901, 000608.
10) TAE E. Johnson, undated, 1888 Phono General. The data available for 1890 shows that the year’s
experimental work was billed about $80,000, showing that
Edison’s estimate operating costs was fairly accurate.
12) Bill Book #3, pp. Lab.0.
14) Draft Agreement with Villard, 1888 W. 394, 397.ENDNOTES FOR CHAPTER TWO
1) Article Munsey’s Magazine. 277-278.
435.
5) Edison’s Menlo Park laboratory described Robert
Friedel and Paul Israel, Edison* Electric Light (New
Brunswick: Rutgers University Press, 1986)pp. Lab General.
16) Article Munsey's Magazine. 246. Nov 1888, 1888 Phono Gen. TAE Memo, 1888
W. July 1901, Letter Book (LB)
100521, 435.H.
7) Bank records Drexel, Morgan, E2530, 182.
13) Eaton Lewis Tate, June 1889, Miller file 121. July 1901, 100521, p.
11) Insull’s notes Meadowcroft Box, #68. Henceforth letterbooks will cited LB
number then page number.O.
9) One his first estimates the yearly cost running the
West Orange laboratory was:
1) Interest Investment (opportunity costs an
investment 184,000 5%) $9,200
2) Insurance $1,100
3) Depreciation 9,200
4) Supplies 7,000
5) Labor costs 62,000
This makes total yearly operating costs $88,900.
