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