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