246.
11) Insull’s notes Meadowcroft Box, #68. TAE Memo, 1888
W.
16) Article Munsey's Magazine.
3) TAE Ore Milling Syndicate, Feb 1901, 000608.O.
5) Edison’s Menlo Park laboratory described Robert
Friedel and Paul Israel, Edison* Electric Light (New
Brunswick: Rutgers University Press, 1986)pp.
8) TAE note Edison Electric Light Co, July 1887, Conot,
p.0. Nov 1888, 1888 Phono Gen. 30-38
6) Orange Herald.
7) Bank records Drexel, Morgan, E2530, 182.
12) Bill Book #3, pp.
10) TAE E.
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. July 1901, Letter Book (LB)
100521, 435.
2) TAE Hood Wright, Nov 1887, N871115. Henceforth letterbooks will cited LB
number then page number. Lab. July 1901, 100521, p.H. 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.
4) Batchelor Diary, 1336, Sept 1887, pp.
. Johnson, undated, 1888 Phono General. 394, 397.
13) Eaton Lewis Tate, June 1889, Miller file 121. Lab General.
14) Draft Agreement with Villard, 1888 W.ENDNOTES FOR CHAPTER TWO
1) Article Munsey’s Magazine. 277-278.
15) TAE Review Reviews, Oct 1910, 100829, 277.
435
