Foreign Vegetables. 135 
and Evaporation : And the Syrup is an acid Solu- 
tion thereof boiled with Sugar to a due Confift- 
ence. As to the Tindture, in the feveral Ways it 
is generally directed, it does not receive its Colour 
and Virtue fo much from the Coral, as from the 
Menjlrtium and the other Ingredients mixed with 
it. However, if a true Tihdture of Coral be re- 
quired, it may be made thus. 
Take of red Coral q. v. Boil it in q. f. of the 
effential Oil of Anife or Fennel for fix or 
feven Hours in a clofe Velfel, till the Pieces 
of Coral grow white and the Oil is tinged with 
a red Colour, Separate the Oil from the Coral, 
and diftil it with a gentle Fire till the Drops 
begin to come over red. Then upon the re- 
finous Mafs remaining in the Retort pour Oil 
of Tartar per deliquium to the Height of two 
or three Fingers, and let them digeft together 
till the Refin is entirely diffolved. Evaporate 
this Solution to Drynefs : Then pour upon the 
faline refinous Mafs redtified Spirit of Wine 
to the Height of three or four Fingers above 
it. Digeft in an Afh-Heat, and feparate the 
Tindture. Pour upon it again frefh Spirit of 
Wine and digeft as before ; repeating thefe 
Affufions and Digeftions as long as the Reft - 
duum communicates any Colour to the Spirit. 
Mix all the Tindtures, and evaporate to Half. 
The remaining Liquor is a true Tindture of 
Coral •, yet its Effedts will not anfwer the 
Promifes of Empiricks. It contains the ful- 
phureous and bituminous Part of the Coral 
Corallum album , Offic. Corallum album , LobeL Icon 0 
2 53. White Coral only differs from the red in 
Colour. It is rarely found in our Seas * and molt 
K 4 Authors 
