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