42-8 
The tincture separated from the mass by pressing and filtering, has a clear 
lemon-yellow color by transmitted light. It has an acrid and bitter taste, no specific 
odor, and an acid reaction. 
CHEMICAL CONSTITUENTS.—Euonymin. On treating the tincture with 
chloroform, a dark substance is obtained which partly dissolves in ether as a 
beautiful yellow resin, The insoluble portion dissolved in alcohol, and the resin 
precipitated by plumbic acetate, the menstruum after filtration and evaporation 
yields a neutral, amorphous, bitter body soluble in alcohol and sparingly in water.* 
Euonic Acid.—This acid crystallizes in acicular forms, and is precipitable from 
its solutions by plumbic subacetate (Wenzel). 
Resins, gum, sugar, a crystallizable bitter principle, asparagin, tartaric, citric, 
and malic acids were also extracted. 
PHYSIOLOGICAL ACTION.—In large doses the Wahoo acts as a drastic 
purge attended by griping and followed by prostration ; the discharges being sero- 
mucoid with an admixture of bile. It promotes the biliary functions and intestinal 
secretions, increasing capillary circulation generally. 
The symptoms noted are: deathly nausea; vertigo ; excessive tormina ; 
prostration and cold sweat. Profuse and violent evacuation of the bowels, 
accompanied by much flatulence and colic.+ 
DESCRIPTION OF PLATE 42. 
1. Portion of a flowering branch, Cincinnati, O., June 17th, 1885. 
: 2. End of branch. 
3. Flower showing calyx. 
4. Face of flower, © 
5. Section of flower. 
6. Stamen. 
7. Fruit. 
8 Horizontal section of ovary. 
GS enlarged.) 
+ Hale, New Remedies, 293. 
* Wenzel in Am, Four. Phar, 1862, 312. 
