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