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