148-2 
fully warranting the favor it has received. The milky juice that flows freely 
from the wounded plant is an active irritant, causing vesication soon after its 
application to the skin. The plant grows rather sparsely in dry meadows and 
open woods in Canada and central United States, blossoming from June to 
September. E. corollata has been dismissed from the U. S. Ph. (1882); in 
Eclectic practice use is made of the powdered bark of the root, in doses of from 
4 to 30 grains. 
PART USED AND PREPARATION.—The fresh root gathered in the fall, 
is chopped and pounded into a pulp and weighed, then two parts by weight of 
alcohol are taken and the pulp thoroughly mixed with one-sixth part of it and the » 
rest of the alcohol added. After having stirred the whole well, pour it into a 
well-stoppered bottle and allow it to stand eight days ina dark, cool place. The 
tincture is then separated by decanting, straining and filtering. 
Thus prepared it has a clear, light-yellow color by transmitted light, n 
distinguishing odor, a sweetish or mawkish taste, leaving a sensation of fuzziness 
upon the tongue, and a decided acid reaction. 
CHEMICAL CONSTITUENTS —At the present we can do no better than to 
refer to E. hypericifolia, 147, for the chemistry of this plant, for so far only the 
generic qualities have been determined, no distinct and specific analysis having 
been made. 
PHYSIOLOGICAL ACTION.—The action of the Euphorbias generically will 
be found under 147, the specific physiological action of E. corollata is so far little 
investigated. The minute effects can best be determined by consulting the prov- 
ings contained in the Encyclopedia of Materia Medica, by Dr. T. F. Allen, vol. iv., 
p. 244. 
DESCRIPTION OF PLATE 148. 
1.—1a. Whole plant from the banks of the Chemung River, its principal habitat east. Elmira, N. Y., 
July 19, 1879. 
2. Stamen (enlarged), 
3- Sterile flower (enlarged), 
4. Pistil (enlarged), 
5- Fruit (enlarged). 
