308 
OBSERVATIONS ON SASSY BARK. 
had little odor, was soluble in alcohol, and burnt with a sooty 
flame, with a large carbonaceous residue. This was then treated 
with chloroform by trituration and thrown on a close filter ; the 
larger part was dissolved, forming a light brown solution, which 
yielded a soft, brownish, matter by evaporation. This sub- 
stance fused by a gentle heat, caused a greasy stain on heated paper, 
and was dissolved by warm solution of potassa, from which muri- 
atic acid precipitated it in minute brownish globules, and is a mix- 
ture of resin and fatty matter. The undissolved portion left on the 
filter was apotheme, dissolved by the alcoholic ether fisrt used. 
It was a brownish red powder, soluble in alcohol, insoluble in 
anhydrous ether and cold water, but dissolved partially by boil- 
ing water, and by solution of potassa, and swells up without 
disposition to inflame when heated. 
The residue of bark left by the ether was extracted with alco- 
hol, and this evaporated to dryness. This extract was exhausted 
with water and dried. The residue was completely insoluble in 
chloroform, swelled up when heated, was partly soluble in boil- 
ing water, very soluble in diluted alcohol and in alkaline solutions, 
and consisted almost whollyof a substance allied to the apotheme 
of Krameria triandra. 
3500 grains of sassy bark in coarse powder, was exhausted by 
alcohol, .835 by maceration and percolation, and the tincture 
evaporated on a water bath to a soft extract, weighing 950 grains, 
which was used as the basis of a series of experiments for the ac- 
tive principle. 
a. 200 grains of alcoholic extract of sassy was triturated with 
120 grains of calcined magnesia, and sufficient water to effect the 
combination of the tannin and coloring matter with that earth, 
and then dried at 212°. The mass, reduced to powder, was ex- 
hausted with boiling alcohol, and the liquid evaporated to half an 
ounce and set aside. As the liquid disappeared by spontaneous 
evaporation, an oil-like matter separated on the sides and surface. 
b. 200 grains of the same extract was treated in the same 
manner with 200 grs. of lime, previously hydrated. As the alcoholic 
liquid evaporated, the same oily-looking matter was eliminated. 
c. 200 grains of the extract was treated with 100 grains 
of hydrated protoxide of lead, (carefully freed from alkali by 
washing) in the same manner as a. and b. and on evaporating 
the alcoholic liquid the same product was obtained. 
