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