\ 
ON THE PREPARATION OF KERMES MINERAL. 235 
" This process of Cluzel, which really gives a very satis- 
factory preparation, has been adopted to the excUisiori of 
all others, by pharmaceutists, chemists, and all those who 
occupy themselves with the manufacture of kermes, but it 
is necessary to conform exactly and definitely to the letter of 
the formula, to render the medicine identical and stable in 
its action. It is very important th*at a resolution to conform 
to correct principles be adopted in preparing this remedy, 
so that the various sources from whence the kermes of the 
shops is derived, should furnish a perfectly uniform agent. 
"M. Liance^has found himself in a situation favourable for 
ascertaining the numerous anomalies presented by kermes 
from various sources. The depositary, by succession, of a 
process which appears to have issued from the hands of Le- 
gerie himself, the experience of his predecessors and his 
own, has demonstrated to him the regularity of this process, 
its simple and easy execution, and the constant resemblance 
of the products obtained by it. This circumstance appears 
to have originated the confidence, accorded by many pharma- 
ceutists and manufacturers of chemicals, to the kermes, 
which has long been prepared by the house now directed 
by M. Liance. 
" It is this process, gentlemen, that our cotemporary comes 
to make known, and to give you. The prejudice that will 
accrue to him by publishing a means of preparing a medi- 
cine for which he has an extensive sale, we think renders 
the act great and generous, considered with a view to the 
interests of humanity, of medicine, and of pharmacy. 
«^ The process of M. Liance is divided into two operations. 
First Operation. 
Take of Refuse hair or horn, 2.2 lbs. 
Carbonate of potassa, 4.4 lbs. 
"Arrange in a crucible in alternate layers, refuse hair and 
alkali, about one-third to two-thirds of an inch thick, let the 
last stratum be a thick one of carbonate, cover the crucible 
