IV, pp.
Use EDIS 6154 and EDIS
collection. this table an
experimenter was involved mixing some the substances used records, such
as oleic acid, and producing intermediate substance, based naphthalene,
which was used solvent preparing solutions record materials, including
shellac.W.
EDIS collection.
EDIS collection.630
n annotated copy Henry Watts, Dictionary Chemistry (London: Longman’s, 1883), vol. Each chemical organic substance
might the end product series complex transformations. Phonograph records contained wide variety
of different chemicals and organic substances. Use EDIS 348. r
631 Notebook N-10-09-29. Lancaster was work this table chlorinating
naphthalene make substances such tetrachlornapthalene dissolve shellac.
1-24 laboratory horary.
Object and Location Evidence Recommendation
Table 4
LAB TABLE with RACK (in
place)
Physical evidence.
218
.
TRIPOD (on table) Standard laboratory
equipment.
Round-bottom FLASKS, (on
table)
Standard laboratory
equipment.
This was delivered Petit solvent use his experiments shellac.
Use EDIS 7099 and EDIS
7098.
BEAKERS, small (on table) Standard laboratory
equipment.Table Materials for Records.631
The chemicals this table 1914 suggest that Lancaster experimented with
dissolving shellac part the process making the solvents.
According Laverty, H.
BUNSEN BURNERS, (on
table)
Standard laboratory
equipment
