334 Treatise on 
Heat of the Sun concretes into the hepatick Aloes ; 
And the Dregs infpiffated afford an impure Extradt, 
called caballine Aloes. 
The caballine Aloes is eafily diftinguifhed from 
the other Sorts by its ungrateful, ftrong Smell, 
though in other Refpedts it may agree pretty much 
with the common : It is fometimes even fo pure 
and bright, that its offensive Smell is the only Mark 
whereby it can be known from the Soccotrine. For 
this Reafon it is called foetid, ; and caballine becaufe 
it is employed only by Farriers in the Diftempers of 
ITorfes, &c. 
The Soccotrine Aloes is almoft univerfally required 
for internal Ufe, and the hepatick for external j yet 
fome, on the other Fland, affert that the hepatick, 
whether internally or externally ufed, is preferable. 
It is certain M. Boulduc has difcovered a great Dif- 
ference between them ; the bright Soccotrine Aloes 
containing a lefs Quantity of Refin or Sulphur than 
the hepatick, and more of a Gum, or feline Sub- 
ftance. For four Ounces of Soccotrine Aloes being 
put into boiling Water and digefted in a Sand-Heat, 
the whole Subftance of the Aloes was diffolved ; 
but the Solution being fet for fome Hours in a cool 
Place, a certain refinous or heavier Portion fell to 
the Bottom of the Veffel, the aqueous Liquor 
fwimming above it. The Sediment feparated from 
the Liquor, and expofed to the Heat of the Sun 
till it was dry, weighed feven Drachms and twelve 
Grains. This refinous Subftance he diffolved in 
Spirit of Wine, and found fixty Grains of an earthy 
or gritty Matter not taken up by the Menftruum. 
But the Spirit of Wine being evaporated by a gentle 
Heat, the Extradt remaining, which was refinous 
and entirely inflammable, weighed fix Drachms and 
twenty four Grains. The aqueous Liquor loaded 
with Gum, evaporated to Drinefs in an Afti-Heat, 
3 left 
