COR 
is apprehended, and all their activity and 
pro[)erty is perpetually exerted to prevent 
the dreadful extremity of a famine. 
CoR\, in medicine and surgery, a hard 
tubercle like a flat wart, growing in several 
parts of the feet, especially upon the joints 
of the toes. This disorder is attributed to 
the wearing of too strait or narrow- toed 
shoes, which never fail to produce these tu- 
bercles, especially if the person is obliged to 
stand or walk much, and in the summer- 
time. X'^arious are the methods used for 
removing these callosities of the skin and 
cuticle ; some by knife, and others by appli- 
cation of emollient and caustic or eroding 
medicines. 
As few things are more troublesome than 
corns in the feet to those who have much 
walkiiig, we may observe that the pressure 
may ()e prevented in the following manner : 
Take a piece of linen, spread with any emol- 
lient plaster ; lay one piece over another, 
eight, or ten, or more times, and cut a hole 
in the middle of them, exactly the same 
size and circumference as the corn, then 
apply it in such a way that the corn enters 
the hole in the plaster, and is thus defended 
against the contact of shoes and stockings. 
Such a plaster, properly applied, will fre- 
quently, in a few weeks, disappear without 
any other remedy. If the corn is at the 
bottom of the foot, a hole cut in a felt 
sole, so as to fit llie corn, is sufficient. 
Wjien this method is found inefficient, mb 
the corn witli the volatile liniment, two or 
three times, in the twenty-four hours, keep- 
ing it covered in the intervals with an emol- 
lient plaster. Every morning and evening 
the foot must be kept in warm water for 
half an hour, and the corn well rubbed 
with soaj). When softened with the water, 
it should be scraped with a blunt knife till 
the soft part is removed, and till the opera- 
tion begin to give pain. This treatment is 
to be continued till the corn is entirely ex- 
tirpated. 
CORNEA tunica, in anatomy, the se- 
cond coat of the eye, so called from its sub- 
stance, which resembles the horn of a Ian- 
thorn. See Eye. 
CORNET, in the military art of the an- 
cients, an instrument much in the nature of 
a trumpet, which when it only sounded, tlie 
ensigns were to march alone, without the 
soldiers ; whereas, when the trumpet only 
sounded, the soldiers were to move without 
tlie ensigns. The cornets and buccince 
sounded the charge and retreat, and the 
COR 
cornets and trumpets sounded during the 
course of the battle. 
Cornet, in the military art of the mo- 
derns, the third commission officer in a 
troop of horse or dragoons. This is a vei y 
honourable post : he commands in the lieu- 
tenant’s absence ; his principal duty being 
to carry the standard, near the middle of 
the first rank of the squadron. 
CORNEUS, the name by which Lin- 
najiis calls a kind of tin ore, found in black 
columns, with irregular sides, and termi- 
nating in prisms. See Tin. 
CORNICE. See Arciutecture. 
CORNUCOPIA, or horn of' plenty, 
among painters, &c. is represented under 
the figure of a large horn, out of which 
issue fruits, flowers, &c. Upon medals the 
cornucopia is given to all deities, genii, and 
heroes, to mark the felicity and abundance 
of all the w'ealth procured by the goodness 
of the former, or the cai e and valour of the 
latter. 
CoRNucopi.*;, in botany, so called from 
the manner in which the flowers grow within 
their involucre, like a cornucopia, or horn 
of plenty, a genus of the Triandria Digynia 
class and order. Natural order of Gra- 
mina or Grasses. Essential character : in- 
volucre one-leafed, funnel-form, crenate, 
many-flowered ; calyx two-valved ; corolla 
one-valved. There are two species, of 
which is C. cucullatiim ; Hooded cornucopise, 
tlie root of this is annual, fibrous, and 
branched ; culms numerous, ascending, 
jointed, smooth, branched, leafy, dark 
purple at the joints ; flowers several, arising 
from the sheaths of the upper leaves ; calyx 
and corolla striated, obtuse ; filaments pro- 
jecting very far ; styles^ connected at the 
base, spreading in the upper part, twisted, 
the length of the stamens. Native of the 
vales about Smyrna, whence it was sent to 
England. 
CORNUS, in botany, a genus of the 
Tetrandria Monogynia class and order. Na- 
tural order of Stellatae. Caprifolia Jussieu. 
Essential character: involucre generally 
four-leaved; petals four superior; drupe 
with a two-celled nut. There are twelve 
species, of which C. florida, great flowered 
dogwood, seldom rises above seven or eight 
feet, and is generally furnished with large 
leaves. It does not flower here very plen- 
tifully, nor does it produce berries in Eng- 
land, though it is very hardy. 
CORNUTIA, in botany, a genus of the 
Didynamia Gyronospermia class and order. 
