Under this head are comprised the degrees from the small thread to
the large pearl; for at these points the sugar is kept in a divided
state, and remains a fluid of an oily consistency. A bottle which holds
three ounces of water will contain four ounces of syrup. The method of
ascertaining those degrees, according to the usages of the trade, is as
follows:
SMALL THREAD.--Having placed the clarified syrup on the fire, let it
boil a little, then dip the top of your finger in the boiling syrup,
and on taking it out apply it to the top of your thumb, when, if it
has attained the degree, on separating them a small ring will be drawn
out a little distance, about as fine as a hair, which will break, and
resolve itself into a drop on the thumb and finger.
LARGE THREAD.--Continue the boiling a little longer, repeat the same
operation as before, and a larger string will be drawn.
LITTLE PEARL.--To ascertain this degree, separate the finger from the
thumb as before, and a large string may be drawn, which will extend to
nearly the distance the fingers may be opened.
LARGE PEARL.--The finger may now be separated from the thumb to the
greatest extent, before the thread will break.