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