14 On the emetic Property of the 
announced by Murray, and extremely well described in the 
memoir of Lassone jun. In order to set aside every doubt 
which may be yet raised, T shall give an account of the ex- 
periments lately made in the hospitals of Paris. 
T made choice of gray ipecacuanha, the ligneous part of 
which I separated carefully, so as to leave no doubt of any 
of the cortical part remaining. I collected 500 grammes 
(one pound), which 'I pulverized. The powder was whitish: 
I sent portions of it to the different chief apothecaries of the 
Hotel-Dieu, the Hospital of St. Anthony, and the Hospice 
de la Maternité. 
The experiments made in these different places proved 
that this part was, as announced by Murray, equally emetic 
and purgative. M. Chaussier, professor in the School of 
Medicine and physician to the Hospice de la Maternité, 
assured me that the wood of ipecacuanha had succeeded 
every time he employed it. . 
The experiments were pursued for a month at least, and 
the results were constantly the same. 
Messrs. Latour and Morisset, of the Hotel-Dieu and the 
Hospital of St. Anthony, deserve my warmest thanks; they 
traced the effects of ligneous ipecacuanha with the utmost 
precision, and they assured me they were constantly similar. 
In confirming the experiments of Messrs. Lassone and 
Cornette, which establish the emetic property of the ligneous 
part of ipecacuanha, I do not mean to announce any new 
fact; but, as [ had often heard of its inefficacy, I thought 
the best method would be to analyse ipecacuanha carefully, 
in order to put an end to all doubts on the subject. I shall 
now proceed to communicate my analysis. 
After having carefully separated the cortical and ligneous 
parts, I treated each separately, by sulpburic ether, rectified 
alcohol, and water. 
Ten grammes of the cortical part, digested in 150 grammes 
of cther, slightly coloured the liquor: the ether evaporated 
to dryness ; there remained upon the sides of the vessel seven” 
decigrammes of resinous matter, inflammable and inso- 
Juble in water, and presenting all the characters of the 
resins. 
