Memoir upon Coffee: ' 17 
posablé by the action of calorie; 2d, different salts with a 
base of lime: in short, that the cortical and ligneous parts 
contain very nearly“the same materials; which confirm the 
experiments of Lassorie and Cornette, and tinosé recently 
made in the hospitals of Paris. . 
_ This root, distilled in the naked fire in a small glass re- 
tort well luted, yielded the following products; water, oil, 
acetous acid containing oil, and elastic fluids. 
In my last analysis I incinerated the root of ipecacuanha : 
thirty grammes of it placed in a crucible were reduced to a 
small quantity of ashes, which, being leyed, yielded very 
little saline matter, about fifteen centigrammes of sulphate 
of lime, mixed with a small quantity of a muriate of a kind 
I did not know, 
Such is the result of my experiments. I hope they will 
remove all uncertainty, and be productive of some utility. 
V. Memoir upon Coffee. By C. L. Caner, Apothecary 
in Ordinary to the Imperial Household *, 
Cuemreat researches are often directed to the analyses of 
substances more curious than useful; while those which are 
familiar to every one, and in daily use, are but too much 
neglected. Such were the considerations which induced me 
to undertake the following experiments upon that salutary 
article of nourishment—coffee. 
When we reflect that this colonial produce takes out of 
France more than thirty millions annually, and that it oc- 
tasions an immense consumption of sugar, always to the 
advantage of foreigners, it certainly becomes chemists to 
examine its nature and explain its medicinal virtues. 
Bourdelin, Geoffroy, Rihiner, and some others, have al- 
teady published analyses of coffee; but their labours have 
taught us nothing, because science, at the time they wrote, 
was not far enough advanced, and they wanted the most 
useful re-agents. Without thinking myself wiser than they, 
* From Annales de Chimie, tom. lviii. p- 266. 
Vol. 26. No. 101. Oct, 1806. B T shall 
