4 
ON CIMICIFUGA RACEMOSA. 
Experiment 2d. — An alcoholic tincture was made by 
macerating two ounces of the dried root in eight ounces of 
alcohol for fourteen days, and filtered, it was of a deep wine 
color. It had a bitter and nauseous taste. Upon adding 
water to a portion of it, a slight curdiness was perceptible. 
Per sulphate of iron produced a dense bluish black precipi- 
tate; upon evaporating a portion of this tincture it separated 
into two parts; first, a resin of a deep red color, the other 
soluble in alcohol and ether, not soluble in water. It was 
repeatedly washed with alcohol and ether, and after evapo- 
ration there remained a greasy oleaginous matter. 
Experiment 3d. — An etherial tincture was made by ma- 
cerating two ounces of the dried root in eight ounces of 
sulph. ether and filtered. It was of a light brown color, a 
bitter and disagreeable taste. Upon evaporation this also 
separated into two parts; first, a fixed oil of the consistence of 
thin syrup, of a deep brown color, and of bitter and astringent 
taste, leaving a disagreeable impression in the mouth and 
fauces for some time. It had an unctuous feel, and when 
dropped upon paper it left a permanent greasy stain. 
Second, upon further evaporation it yielded a waxy matter 
in connexion with a black coloring matter. 
Experiment 4th. — A portion of the dried root was fine- 
ly powdered, and moistened with warm water and subject- 
ed to heavy pressure. Some gummy matter was pressed 
out. This was treated with sulph. ether, but no oil could be 
detected. From which it is inferred that it contains oil in 
small amount. 
Experiment 5th. — A portion of the fresh root was dis- 
tilled with water; the product was a volatile oil, which 
came over mingled with the water, and upon standing a 
short time a small quantity of oil appeared at the bottom of 
the receiver, which was carefully removed; it possessed a 
peculiar odor, somewhat aromatic, and a sweet and agreea- 
ble taste; it was of a dirty white color, heavier than water 
and soluble in alcohol. A small portion was dropped upon 
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