208 
SELECTED ARTICLES. 
other hand, that kinovic bitter has no relation with the alka- 
loids of cinchona, though we are, on this account, by no means 
authorized to conclude that the quina nova is not a true bark, 
for the quina regia, on whose origin there is no doubt, also con- 
tains the same principle. It is not the only instance of the 
same substance being found not only in different genera, but 
also in different families. I need only instance the existence 
of saponine, emetine, asparagine, &c. in widely separated 
plants. Joum. de Pharm. 
ART. XXXI.— REPORT TO THE SOCIETY OF PHARMACY OF 
PARIS ON A MEMOIR BY M. ANDRE ON THE ACTION OF 
ACIDS ON QUINIA. By MM. Soubeiran and O. Henry. 
In the month of August, 1835, M. J. J. Andre, professor in 
the military Hospital of Instruction at Metz, addressed a me- 
moir to you, which was referred to M. Soubeiran and myself. 
To fulfil the task assigned to us, we shall detail the experi- 
ments of M. Andre and make our observations on them. We 
shall do this somewhat at length. M. Andre has proposed to 
explain the action of the acids and chlorine on quinia, and de- 
duced applications of importance in the analysis of barks, and 
finally has produced iodide of azote, by a reaction not hither- 
to noticed. 
1. Action of acids on Quinia. "All those who have pre- 
pared solutions of sulphate of quinia by the aid of a few 
drops of sulphuric acid, must have remarked the beautiful 
opaline and blueish tint that the solution assumes; the best 
chemical works do not notice this fact. M. Guibourt, is, I 
believe, the only person that has attempted to explain. He 
says, ( Pharmacopee raisonnce t. I.) 6 The syrup of quinia, 
as well as all solutions of sulphate of quinia, when diluted with 
