H.
16) Article Munsey's Magazine.
10) TAE E.
2) TAE Hood Wright, Nov 1887, N871115. July 1901, 100521, p. 246. 394, 397. Lab General.
15) TAE Review Reviews, Oct 1910, 100829, 277.
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.
14) Draft Agreement with Villard, 1888 W. Johnson, undated, 1888 Phono General. 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.ENDNOTES FOR CHAPTER TWO
1) Article Munsey’s Magazine.
12) Bill Book #3, pp.
13) Eaton Lewis Tate, June 1889, Miller file 121.
7) Bank records Drexel, Morgan, E2530, 182.0. July 1901, Letter Book (LB)
100521, 435.
8) TAE note Edison Electric Light Co, July 1887, Conot,
p.
11) Insull’s notes Meadowcroft Box, #68.O.
3) TAE Ore Milling Syndicate, Feb 1901, 000608.
. Henceforth letterbooks will cited LB
number then page number. TAE Memo, 1888
W. Lab. 30-38
6) Orange Herald.
4) Batchelor Diary, 1336, Sept 1887, pp.
435.
5) Edison’s Menlo Park laboratory described Robert
Friedel and Paul Israel, Edison* Electric Light (New
Brunswick: Rutgers University Press, 1986)pp. 277-278. Nov 1888, 1888 Phono Gen
