Foreign Vegetables.' 441 
Drachms ; in Calcination twenty- fix Ounces, five 
Drachms and fifty- two Grains. It appears from 
this AnalyJiSy that Galls contain a large Quantity of 
thick fixed Sulphur, combined with an ammoniacal 
Salt. 
Moreover, Galls turn a Solution of Vitriol black 
or rather of a deep purple. For the alkaline Salt 
of the Galls joining itfelf to the vitriolick acid Salt, 
feparates from it the metallick Parts : Which then 
fubfide not to the Bottom *, but are united with the 
fulphureous Particles of the Galls floating in the 
Liquor, and are fuftained by them. By this Pro- 
perty an Infufion of Galls ferves Chymifts and Na- 
turalifts to try Mineral Waters : For if they contain 
a vitriolick Salt, or any Thing of Iron or Copper, 
it renders them black, violet-colour’d, purple, or 
tending thereto, according as they are more or lefs 
loaded with the metallick Salt. 
Galls are powerfully aftringent : Wherefore they 
are commended by many in Dyfenteries, Loofeneflfes 
and Hemorrhages. And very lately an antifebrile 
Virtue was difcovered in them. This Difcovery 
was made publick by M. Reneaums , a Phyfician of 
Paris , in the Memoirs of the Royal Academy of Sci- 
ences, Ann . j 7 1 1. They are given in Powder from 
gfs. to 3j. at the Beginning of the Fit in intermit- 
ting Fevers, in thofe efpecially, fays M. Reneaume , 
which depend upon a lax Tone of the Stomach. 
They are applied externally to aftringe, repel, 
and to ftrengthen lax Parts. A Deco&ion of them 
is ufed againft the bearing down of the Womb, and 
Reftum, and to prevent Fluxions upon them. 
Take Galls and Pomegranate-barks, a 33. Leaves 
of Sage, Laurel, Camomile, and Balauftines, 
a. p. ij. Boil them in rough Wine and Smith’s 
Water, q. f. and with the Deco&ion foment 
the Part aflfetted. They 
