OIL. 
@ peculiar colour ufed on the area or to thofe pieces 
of the ware which are coloured with It is a very elegant 
would be worthy our aucepene to imitate 
in Engl n our better forts of wares. ey do it in 
the lowing manner: they mix the red colour, called tam- 
dan-hum, © os es red (fee PorceLain) with oil of 
the thor es 
a ie eae with us b mon cryftal. The 
powder is to be thoroughly mixed with thefe liquors, and 
the veffel apt carefully into the mixture, or fome parts of 
it only covered with it in figures: after this, it is to be fet 
by to dry, and, when thoroughly dried, it is to be baked in 
the common way. The general method is is that of covering 
the veffel all over, both infide and out, with this red ; and 
it comes out of the moft bright oak brilliant means praia 
ble, but it will not ring ibaa upon, as our com 
china-ware does ae this j in any i of tee 
fection, but it is very elegant when fine. 
on Rock. See PeTR 
O1n of Rofemary. (See Ronee ) Twenty-four pounds 
of the plant yield one ounce of a fluid colourlefs oil, the odour 
of which is lefs agreeable than that of the plant. It depofits 
cryftals of camphor when long kept. Its decpa gravity is 
.934. As to its medical properties, it is ftimulan on 
quently enters into the compofitien of liniments. "Phe d 
as an internal remedy, may be from 11 j to 1 vj; but iti ic 
{carcely ever ordered. The officinal id ea are tinctura 
iw of Rue. (See R T one pounds of rue 
yield 59 grains of oil, which. has as ftrong ungrateful odour 
and taite of the plan hen recently drawn the colour is 
iven 
wo SASSAFRAS.) Sixty pounds of 
id nue oil, heavier than 
odour is fra- 
nt, and its tafte hot and acrid, excoriating the lips when 
incautioufly tafte 
he oil of faffafras is peculiarly liable to cryftallization in 
certain circamitances, and that into the moit beautiful forms. 
Mr. Maud gives an aceount of a quantity of aad oil, which 
were readily Se at the fire, an 
"This oil is ftimulant, and fuppofed a be ‘alfo fudorific and 
diuretic. It has been given in chronic rheumatifm, fcurvy, 
and fome cutaneous affe€tions. The dofe is from 1m ij te 
mM - tae it is {carcely ever — d. 
avine. (See Junirervus.) Two pounds of favine 
are faide to yield five ounces of oil, which is limpid, of a pale 
yellow pee having the dour of the 
th 
ms, 
oil of {pearmint, three drops diffolved in half an ead 
(fluid?) of compound tinture of cardamoms ; and miting 
the ingredients. This is a grateful ftomachic, and i is flightly 
diaphoretic. It may be ferviceable in anorexia and - 
and as a vehicle to cover the difagreeable tafte of other 
caus, The dofe may be from f.3j to f. f 3H) or at ay 
ee Stillatitious. See Sv1LLAtTiTIo 
Stone. In the manufacture OF “the Chinefe porce- 
ain, ao ufe a liquid matter of a white colour, which the 
call by this name, on which their 
their work depends ; 
depth on the y carefully fkim off, and 
putting it into anpther aie of dear water, they let it throw 
down any coarfe matter 
ate. 
very little title to the name of an oil; it is rather a varni 
and is always ufed in mixture with another varnifh, which 
3B2 
