{{rh|54] |SER|SET|}
berries, were given in sufficient quantities, uniformly recovered, while others died of the disorder. Non is this fruit less useful for making cyder, and distilling bran- dy. Its wood is remarkably hard, and therefore valuable to turners for screws or cog-wheels and to mathematical instrument-makers; for rulers, gauging-sticks, &c.
3. The hybrida (Pyrus hybrida
of Dr. SMITH), BASTARD MOUN-
TAIN ASH, or BASTARD SERVICE,
is found principally on mountains,
where it flowers in the month of
May. This tree forms a singular
variety of the two preceding spe-
cies, and consequently partakes of
their united properties. Its wood,
however, is softer than that of the
true Service-tree; and, though af-
fording good fuel, its charcoal is
greatly inferior to that obtained
from the latter:-its berries are
sweeter, and preferably eaten by
birds.
The Service-tree is cultivated in
Britain, principally as an ornament
for diversifying extensive planta-
tions; as it grows to the height of
40 feet. It is propagated by sow-
ing the seed, a short time after the
fruit is ripe, in pots, which must
be sheltered during the winter;
and, when the spring advances, it
will be proper to plunge them in
hot-beds, and to water them fre-
quently, duting dry weather. To-
wards the middle of October, the
young plants may be removed to a
warm spot of light soil, and placed
one foot apart from each other, in
rows two feet asunder. Here they
should remain for three or four
years; at the expiration of which,
they ought to be transplanted to
the place appropriated to their
growth.
SERVICE-TREE, the Wild. See HAWTHORN.
SERUN. See BLOOD.
SETTER-WORT. See HELLEBORE, the Fetid.
SETON, in surgery, a kind of issue, or artificial ulcer, produced by passing the seton-needle through any of the larger muscles, and in- ntroducing a cord made of cotton or silk thread; in order to effect the discharge of superfluous, or mor- bid, matter,
Instead of describing the parti- culars; relative to this chirurgical operation, we shall merely observe, that setous occasionally prove use- ful remedies; especially where the body abounds with humburs: hence they are frequently made in the back of the neck, for diseases of the eyes; or between two of the ribs, in affections of the chest. As, however, a seton occasions a great degree of pain and irritation, it is not applicable to weakly and delicate persons, with whom the common issues generally agree. Nevertheless, either of these re- medies are attended with similar effects; and the former, in parti- culur, has been strongly recom- mended in ulcerations of the lungs and chest ; nay, the late Mr. Pott was the first who successfully em- ployed this expedient in various cases of hydrocele,
SETONS, in farriery, are oc- casionally applied to various parts of a horse's body, for the purpose of discharging! matter from deep seated tumors of abscesses.
Setons are introduced by means of long, thin needles, dart-shaped at the point, and armed with a suitable cord. The size of the in- strument, as well as the thread, depends on that of the part affect-ed
