10) TAE E. July 1901, Letter Book (LB)
100521, 435.
12) Bill Book #3, pp.
.
3) TAE Ore Milling Syndicate, Feb 1901, 000608.
14) Draft Agreement with Villard, 1888 W. Lab. July 1901, 100521, p. 277-278.
5) Edison’s Menlo Park laboratory described Robert
Friedel and Paul Israel, Edison* Electric Light (New
Brunswick: Rutgers University Press, 1986)pp. 30-38
6) Orange Herald.ENDNOTES FOR CHAPTER TWO
1) Article Munsey’s Magazine.
4) Batchelor Diary, 1336, Sept 1887, pp.
2) TAE Hood Wright, Nov 1887, N871115. 394, 397.H. Nov 1888, 1888 Phono Gen.
7) Bank records Drexel, Morgan, E2530, 182.
15) TAE Review Reviews, Oct 1910, 100829, 277. 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.
11) Insull’s notes Meadowcroft Box, #68.
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.
16) Article Munsey's Magazine. Johnson, undated, 1888 Phono General.
13) Eaton Lewis Tate, June 1889, Miller file 121.0.O. TAE Memo, 1888
W.
8) TAE note Edison Electric Light Co, July 1887, Conot,
p. 246. Henceforth letterbooks will cited LB
number then page number.
435. Lab General
