July 1901, Letter Book (LB)
100521, 435.
16) Article Munsey's Magazine. Henceforth letterbooks will cited LB
number then page number.
11) Insull’s notes Meadowcroft Box, #68. 246. 30-38
6) Orange Herald.
12) Bill Book #3, pp.
10) TAE E.
4) Batchelor Diary, 1336, Sept 1887, pp. 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.
14) Draft Agreement with Villard, 1888 W.
13) Eaton Lewis Tate, June 1889, Miller file 121.
2) TAE Hood Wright, Nov 1887, N871115.ENDNOTES FOR CHAPTER TWO
1) Article Munsey’s Magazine.
5) Edison’s Menlo Park laboratory described Robert
Friedel and Paul Israel, Edison* Electric Light (New
Brunswick: Rutgers University Press, 1986)pp. TAE Memo, 1888
W.
435. Lab General.
. Lab. Nov 1888, 1888 Phono Gen. Johnson, undated, 1888 Phono General.H. 277-278.0.
15) TAE Review Reviews, Oct 1910, 100829, 277. 394, 397. July 1901, 100521, p.
3) TAE Ore Milling Syndicate, Feb 1901, 000608.
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.
7) Bank records Drexel, Morgan, E2530, 182.O.
8) TAE note Edison Electric Light Co, July 1887, Conot,
p
