When all attempts producing satisfactory chemical substance to
insulate wires failed, Edison decided appoint Fessenden the job. Schulze-Berge was the librarian.
111 Testimony Theo Wangemann, National Phonograph Company American Graphophone
Company, 1903, 63.107
107 Ibid. Schulze-Berge was German chemist employed by
Edison from December 1887 through June 1891.
112 Marshall, Recollections ofEdison, 65. Franz Schulze-Berge.*’ Fessenden soon found himself in
Building where worked the insulation and ore milling projects. have had lot of
chemists. Schulze-Berge's duplicating
experiments were carried rooms and the second floor Building 5.was then assigned assistant the chief researcher Building and
was made part the experimented team looking for insulator for electrical
cables.110 His experimental notes
record his work silver and gold plating vacuum-an important element in
Edison’s project duplicate cylinder records. was
discharged good terms 1890 when the insulation project was
discontinued.. When Fessenden's position was eliminated, Dorr was
given some his responsibilities. left the laboratory college in
1890.O, Tate, March 21, 1889 (in 1889, Edison, T. Wuntz was German chemist whom Fessenden replaced. Edison
fired him 1889 because ”[I] can't make his work pay me.
109 Edison Pioneers Records, Box 21.A.
io8 <pAE A.109
Dr.-Employment, D-89-14).but none them can get results.
Dr.. Wuntz."111 Marshall worked with him Building and
remembered him "one the most learned men had Orange. had him
for all the books needed. Dorr was assistant Fessenden, who noted that was good
analyst. Theo Wangemann identifies him the librarian for the first floor library,
testifying 1903 that "Dr.’’108
John Dorr.
A.
110 Testimony John Randolph, National Phonograph Company American Graphophone Company,
1903, 103. When the
latter protested that was electrician who knew nothing about chemistry,
Edison retorted, ’’then want you chemist.’’112
43
., Radio News (August 1925), 158." There photograph the Radio News articles that shows Fessenden
and Dorr Building Dorr also worked batteries and borrowed books about
batteries from the library
