EDISON LABORATORY Edison National Historic Site West Orange, New Jersey Volume 1

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3M Shop Order 2011, Notebook N-99-06-24. 355 Conot, Streak ofLuck, 434. During this period, new equipment may have been brought extract rubber substitutes from plants--the last major experimental campaign undertaken the chemical laboratory.355 Mills and crushers were used break down the specimens.363 351 William Meadowcroft TAE, August and September, 1911 (in 1911, WOL-Meadowcroft’s Reports).devices coat both cylinders and discs with varnish lacquers, such air brushes and revolving barrel with air and steam pipes attached. stood near table 10, and chair and wastepaper bin stood beside it. no. 5511A, not reproduced this report. 10. large model nickel­ flake separator was installed 1911. The disc press and phenol production machines were removed sometime the 1920s. more than likely that the large drums used the electroplating nickel were first set this laboratory.354 Photographs taken Building indicate that small table was placed the north end table between 1915 and 1917 (figure 35).1, "New Water Still for Chemical Room/May 21, 08" 3M See also photograph no. Specimens plants from all over the United States were sent the West Orange laboratory. The large arc lamps hanging over the center aisle were removed and replaced with twin rows of incandescent lamps glass shades (figure 37). It not known where the job crushing and testing these specimens was carried out.352 Around 1908, apparatus distill water was erected the west side the building the front door. Building Period III: 1915-1931 The interior fabric this building remained unchanged during this period but there were many changes the furnishings.383/7, neg.361 The storage battery project also brought large machines into Building for development and testing. was said that the room used for these experiments was called "the hay fever room" the laboratory staff, such was the number plants it. This was Edison’s personal table and the one which remains the laboratory today (figure 39). 352 Ibid. Edison’s instructions his assistants the rubber experiments mention several types mills and describe 104