Acquire. Use E-1328.
203
. Use EDIS 25211/25212. Use EDIS 23792.
See Voucher 78, November
1910. EDIS collection reproduce. Reproduce.
Reproduce.
MICA SAMPLES (on table) See Laboratory Notebook. Use EDIS 1283.
WAX BLANK, brown (on
table)
Used for record experiments.
DISC MICROSCOPE (on
table)
Used for record experiments.
DISC RECORD BLANK (on
table)
Used for record experiments.
BOTTLES, various sizes,
labelled (on shelves)
Figure 23.MICA DIAPHRAGMS, (on
table)
These were made the
Edison Phonograph Works.
Clear CELLULOID RECORD
(on table)
Used for record experiments.
OPEN SHELVING (on south
section wall)
Figure 23
