‘ORY 
of minerals have been affumed, viz. I. si socom fuch 
or 
phtha, mountain 
2. Light, fuch as havea f{pecific gravity between 1.000 mere 
2.000 (taking water at ¥.000); amber, a le ee pit- 
coal. 3. Rather heavy; fuch as have a fpecific gravity 
.000, which is the cale LN moft kinds 
of ftones, as amianthus, rock-cryftal, mica, &c . Hea avy 3 
when the {pecific gravity is from 4.000 to 6.666; as in 
moft metallic ike fuch as grey copper ore, red hematite, 
&c. 5. Extremely heavy; when the {pecific gravity ex- 
ceeds 6.000, Which includes the native metals, as native gold, 
native filver, native co and fome ot ers, as galena, tin- 
ftone cryftals, fulphuretted bifmuth, and vitreous filver ore. 
after rubbing or ftriking, when the {mell emitted is refinous, 
as in {wine-ftone after rubbing ; fu'phureous, as in pyrites ; 
gartic, as in arfenical then oe white cobalt ore ; empy- 
reumatic, a8 in quar‘z and pitc 
e afte, which is charaAerific of one clafs of mi- 
P 
ious, as native ‘kali 
urinous, as native niac. 
TOGRAPHY, formed of opuxros, foffils and yeaPuy 
1 deferibe, is that part of natural hiftory in which foffils are 
defcribed. See ORycTounosy. 
ORYCTOLOGY, of opuxtos, foffil, a oa difcourfe, 
is that part of phyfic which treats of fofli 
OR » In Botany, a name Metre “from the bar- 
barous Arabic one Horudjrudi, and applied by Forfkall, in 
his Fl. Egypt-Arab. 103, to a a Saati new genus, efta- 
ee by ty upon two fpecies of Port 
es See thofe ce See alto: ‘Willd. Sp. Pl. 
” ORYGMA, 
oeufya, among the pel aeiae a name given 
to the pit, more whenc 
ufually called darathru: e the 
public executioner es the aepelon of 6 ex rw 
opel uamr.. 
ORYX, in Zoology, a fpecies of Antilope. See 
SAN 
ORYZA, in Hiotanys an ancient name, ogvée of the Greeks, 
fuppoled by profeffo Martyn to be, poffibly, derived from 
oguTT wy £0 ether ea name may have originally been 
ns oye to. various forts of grain, or pulfe, procured by 
indicates his ogvga to have been our 
‘is a kind of grain, which grows 
It, is moderately nutritious, 
en. 177. Sc 237. 
v. pe 
iggin 
Deford, decidedly 
Oryza 
ys he, 
vinted, nearly 
equal valves, ae one flower. Cor. ve two boat-fhaped, 
reffed valves, of equal length; the broadeft 
with five ie and a terminal awn; the inner one nar- 
roweft. Nectary of two minute flat leaves, at one fide of 
ORY 
the germen, each leaf narrow at the bafe, abrupt at the 
fummit, deciduous. Stam. 
= an ovalobleng form, compreffed, with t 
o furrows at each fide. 
alyx a a of two v ae, cond ing a 
fingle flower: Corolla of two valves, angular, of equal 
eae growing to the feed. 
O. fativa. Common Rice. Linn. Sp. Pl 
Miller Illuftr. t.19. (Oryza; Camer. Epit. 192. 
Valgr. v. 1. 365. Ger. em. 79.)—Native of Ethiopia. 
Ser ahear in iu ae countries abundantly, as well as 
in fome of the w 
rice in his 
re) 
mewhat hairy, curioufly and m 
eae) granulated or dotted. Awn traight, rough: various 
eng 
Moft authors have confidered this as the only a > 
Orgs za. Loureiro fays there are feveral varieties of it, 
ie thinks fome really diftin@ fpecies, of which he gives 
the haere particulars, to lead the way to fuller botanical 
obfervatio 
. communiffina. Common Rice. * Loureir. Cochinch. 
215 this the fem is four feet high. Panicle {piked, 
the fprkes moftly fimple., Hufk of the feed pale, oblong, 
with ms awns. This is alate fort, gathered from fi 
flight 
water; and if expofed in a great es to ane it 
co 
. O. precox. Early Rice. Ibid.—Stem three feet high. 
Panicle {piked, the {pikes branched. Hufk of the /eed tur- 
wit orter awas. ipens in the 
Grows in marfhy places, but is not injured 
y falt peenaeaiy 
aa. Mountain Rice. Ibid.—Stem as high 
as the latt, ca more flender. es : = feed lo onger 5 
the awns extremely long. It is dry mountainous 
fituations. If expofed to a eon ued ets on: it decays. 
Sea water kills i 
Sir Jofeph arn has lately obtained feed of this valuable 
kind of rice, from the mountainous parts of a el where it 
is expofed to a confiderable degree of cold. aed prove 
a valuable acquifition, if capable of culture in Europe. 
4 glutinofa. Glutinous =a id.—Stem is our fect 
igh ae broader, and yellowifh. Panicle large, with 
fhorter awns. Svedo ong, rather large, Seka pe? 
very white.—Grows both in watery and dry places. “tp here 
a variety whofe fed is extremely black, and oe an Sceilen 
nothe 
avours as well as r with red fred. Loureiro. 
This fourth ae appears to be what J. Miller has figured, 
as le ted. 
as to contain more filiceous earth in its compe. 
fit on. ee oft of its natural order.—Even the feed is nat 
deftitute of this fubftance. Very brilliant imitations af 
precious 
