PRODUCTS FROM THE SEA
ARTIFIÇIAL
'_
_
Singulay enough, articial pear—ls depend for their
.
manufacture upon a marine product. 'A‘boutthé middle
,
the seventeenth century, a French. r'05ary maker called
]aquin discovered that ne akes ‘Of a ‘_1ustrous,pearl—like
‘
substance could be obtainedîmin‘“ small
sh;
He prepared a thick suspension of this and, by coating
_
alabaster or wax beads with it,
in producing
"
extremely good imitation ‘pearls,’ “and, incidentally, laid
‘
the foundations of the modernarticial pearl industry.
‘
The pearly substance, 'o'r “" essence
it“is'
Called by the French, is really»
a waste pr0d—uct
'
_
Ï
like urea, which is
though only in a '
'
*
few is it suitable for
‘Usually’i—t
is present-as a dull p0Wde‘rï but for the preparation of pearl
essence it needs to be cryStälli‘e‘ because onlyin‘ that fomi
Ï
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is it lustrous, the minute blade—like‘CrystalS”reeCtinglight
_
_
and breaking it up into the colours of, the rainbow. The
,
Ü silvery, appearance of the
sh is' due
-
to the presence of
in the
..
“On the Continent
_
'
main source of pearl
cdùntry“the' herringa —
in
*‘QhefÏsh'
The
_‘
“èrystals are extracted by
‘
them with a
'
.
.Ïseparated in
the sides and
”
are
Â
l
sohd «“g1æs bé'adè: Theformerarecoaœd°themse :
-.
Wl‘chpearl éèëenœ andgeïatmethebeadbemgreV°lved
unnforcoatgis<@ffmeV"h‘””hef=a‘wty -
*
lld in w1thWX Thmdbîldbdwhh
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f