APPENDIX. 
CHEMICAL ANALYSIS OF EUPHORBIA IPECACUANHA.* 
Four drachms of powdered Euphorbia were digested in four 
ounces of Alcohol, specific gravity 827, for the space of ninety-six 
hours, half of which time it was exposed to a heat between ninety 
and a hundred degrees of Farenheit’s thermometer. At the expira- 
tion of this time, the alcohol had acquired a pale lemon colour, 
which disappeared on the addition of a few drops of nitric acid, 
without producing any other phenomenon than the evolution of a 
peculiar etherial odour. On the addition of water, slight floculi | 
appeared, so minute as to elude chemical examination; a were 
- * This analysis was made by Mr. Cullen, chemist, of this ay ‘a gentleman 
every way qualified for such investigations. It is extracted fromthe Thesis of Mr. | 
Royal, a graduate in our University. 
