O U A 
one another entirely in their exterior configuration. At 
firft, they are of a dark-green colour, which afterwards 
changes to yellow; and the hufk, though pretty firm, be¬ 
comes then very brittle. 
The Chinefe peafants collect thefe ou-poey-tfe before 
the firft lioar-frofts. They take care to kill the worm in- 
clofed in the hufks, and to expofe them for fome time to 
the fleam of boiling water, like our treatment of filk- 
worms. Without this precaution, the worm might foon 
break through its weak prifon, which would immediately 
burft and be ufelefs. The ou-poey-tfe are ufed at Pekin 
for giving paper a durable and deep-black colour; in the 
provinces of Kiang-nan and Tche-kiang, where a great 
deal of beautiful fatin is made, they are employed for dye¬ 
ing the filk before it is put on the loom. The Chinefe 
literati alfo blacken their beards with them when they 
become white. The medicinal properties of the ou-poey- 
tfe are very numerous. The Chinefe phyficians intro¬ 
duce them into the compofition of many of their reme¬ 
dies. They recommend them for flopping bleedings; 
they confider them as an excellent fpecific for curing in¬ 
flammations and ulcers, and for counteracting the effects 
of poifon ; and they employ them with fuccefs in the 
dropfy, phthifis, epilepfy, catarrhs, ficknefs, fluxions of 
the eyes and ears, and in many other diforders. 
OU-POU', a town of China, of the third rank, in Ho¬ 
nan ; twenty-five miles eaft of Hoai-king. 
OU-POU', a town of China, of the third rank, in 
Chen-fi, on the river Hoang: twenty-two miles eaft of 
Soui-te. 
OU-TA'I, a town of China, of the third rank, in 
Chan-fi : twenty-feven miles fouth-eaft of Tai-tcheou. 
OU-TAM', a town of China, of the third rank, in 
Pe-tche-li: thirty-three miles fouth-eaft of Pekin. 
OU-TCHANG', a city of China, of the firft rank, in 
Hou-quang, on the river Yank-tfe: 582, miles fouth of 
Pekin. Lat. 30. 36. N. Ion. 113. 50. E. 
OU-TCHEOU', a city of China, of the firft rank, in 
Quang-fi, All the rivers of the province unite near this 
city, which joins to the province of Quang-tong, and is 
the key of the whole province, and the moll confiderable 
city for commerce in it. It hath one city of the fecond 
order, and nine of the third, within its jurifdiftion. 
The country is partly mountainous, and partly flat. In 
the mountains is found cinnabar, and the uncommon 
tree called quang-lang, which, inftead of pith, hath a 
foft pulp, of which they make flour. Lat. 23. 28. N. Ion. 
110. 32. E. 
OU-TCHEOU', a town of China, of the third rank, 
in Koei-tcheou : twenty miles north of Se-nan. 
OU-TCHU'EN, a town of the kingdom of Corea, in 
King-ki: fifty-five miles fouth-fouth-eaft of King-ki. 
OU-TCHU'EN, a feaport-town of China, of the third 
rank, in Quan-tong: twenty miles fouth-fouth-eaft of 
Hoa. 
OU-TING', a city of China, of the firft rank, in Yun¬ 
nan. Lat. 23. 53. N. Ion. 102. 6. E. 
OUA-CONG-YN', a town of Thibet: thirty-two miles 
fouth-weft of Hami. 
O'VA PIS'CIUM, in botany. See Coix. 
OU'ABASH. See Wabash. 
OUACHl'TA, or Ouachit'ta, a county and parifh 
of the territory of New Orleans, which, in the year 1810, 
contained only 1077 inhabitants. The'ftaples of this ter¬ 
ritory are cotton, tobacco, lumber, and peltries. Oua- 
chitta River, fometimes called Black River, is not navi¬ 
gable in autumn, when the waters are low, for any vef- 
fels above the fize of canoes. 
The hot-fprings of Ouachitta, which Jiave been known 
for many years, are fituated on a ft ream called Hot-fpring 
Creek, which falls into the Walhitaw river eight miles be¬ 
low. They lie fifty miles fouth of the Arkanfaw river, in 
Clark county, territory of Arkanfaw, (lately Miflouri,) 
and fix miles weft of the road from Cadron to Mount 
Prairie, on Red River. The approach to the fprings lies 
O U A 63 
up the valley of the creek. On the right of the valley 
rifes the Hot Mountain, wifh the fprings ifiuing at its 
foot; on the left, the Cold Mountain, which is little 
more than a confufed and mighty pile of Hones. The Hot 
Mountain is about three hundred feet high, rifing quite 
fteep, and prefenting occafionally ledges of rocks ; it ter¬ 
minates above in a confufed mafs of broken rocks. The 
fteep and otherwife fterile fides are covered with a luxuri¬ 
ant growth of vines. The valley between this and the 
Cold Mountain is about fifty yards wide. The fprings 
iflue at the foot of the Hot Mountain at an elevation of 
about ten feet above the level of the creek : they are very 
numerous all along the hill-fide ; and the water, which 
runs in copious ftreams, is quite hot: it will fcald the 
hand, and boil an egg hard in ten minutes. Its tempe¬ 
rature is confidered that of boiling water ; but Dr. An¬ 
drews, of Red River, thinks it is not above 200 0 Fah¬ 
renheit. 
OUA'DA, or Go'a, a town of Sardinia, on the borders 
of France: eighteen miles north-north-weft of Genoa, 
and fifteen fouth of Alexandria. 
OU'AGIK, a town of Afiatic Turkey, in Natolia: 
three miles fouth of Ifmid. 
OUA'IS’s BAY, a bay on the north coaft of the ifland 
of Cape Breton. 
O'VAL, adj. {ovale, Fr. from ovum, Lat. an egg.] 
Oblong-; refembling the longitudinal fedion of an egg.— 
The mouth is low and narrow, but, after having entered 
pretty far in the grotto, opens itfelf on both fides in an 
oval figure of an hundred yards. Addifon on Italy. 
Mercurius, neareft to the central fun. 
Does, in an oval orbit circling run; 
But rarely is the objed of our fight. 
In folar glory funk. Blachmore. 
O'VAL, f. A triangle is that which has three angles, 
or an oval is that which has the fhape of an egg. Watts's 
Lugick. —The proper oval, or egg-fhape, is an irregular 
figure, being narrower at one end than it is at the other ; 
that is, the extreme breadth is not in the middle of its 
length. In this it differs from the ellipjis, which is equally 
broad at both ends. In the common acceptation of the 
word, the two curves are confounded together ; and even 
geometricians call the oval a falfe ellipfe. Chambers. 
OUALAL'DE, a town of Africa, in the country of the 
Foulahs, on the fide of the Senegal. Lat. 18.45. N. Ion. 
13. 8. W. 
OVAL'LE (Alonfo de), a Jefuit, born at Santiago in 
Chili, and procurador-general of the order in that pro¬ 
vince. He came to Rome to obtain a fupply of miffiona- 
ries, and there publifhed “ Hiftorica Relacion del Reyno 
de Chile, y de las Mifiiones y Minifterios que exercita en 
el la Compania de Jefus, 1646.” This book is dedicated 
in the title “ A Nueftro Senor Jefu Chrifto Deos Hombre, 
y a la Santiflima Virgen y Madre Maria Senora del Cielo 
y de la Tierra, y a los Santos Jofeph, Joachin Ana, fus 
padres y aguelos.” “ This (fays Mr. Southey) is a book 
of great value, though it is meanly printed, and the en¬ 
gravings are execrably bad. At the end of the copy now 
before me, are fome views of the Jefuit fettlement in Chili, 
and of the fix principal forts, which were publifhed fepa- 
rately, to be purchafed at pleafure. They are, without 
any exception, the very word wood-cuts I have ever feen.” 
An abridgment of this work of Ovalle is in Churchill’s 
Colleftion. Gen. Biog. 
O'VALLY, adv. In the manner of an oval. 
OU'AN, a town of Corea s fifty-three miles weft-fouth- 
weft of Koang. 
OU'AN, a town of China, of the fecond rank, in the 
ifland of Hai-nan : feventy-five miles fouth of Kiong- 
tcheou. 
OUAN-LIN-HO'TUN, a town of Chinefe Tartary ; 
588 miles north-eaft of Pekin. 
OUAN-NGAN', a town of China, of the third rank, 
in Kiang-fi % thirty-eight miles north of Kan-tcheou 
QUAN* 
