274 
ON THE EXTRACT OF RHATANY. 
pies obtained in this city from different sources, and purport- 
ing to be extract of rhatany, the best of which having been 
found only half soluble, are of great interest, as proving the 
little dependence to be placed by physicians upon an article 
of questionable purity. 
It is to be regretted that cupidity should thrust into the 
market an inferior article, consequent upon the adoption of a 
bad process yielding a larger product: but your committee 
trust that the facts elicited by Wm. Procter, and other phar- 
maceutists who have written upon the subject, may have some 
influence upon the manufacturer, and cause also the consumer 
to be less indifferent to the quality of this superior astringent, 
more especially as the new National Pharmacopoeia gives di- 
rections for its preparation. 
A. Duhamel, 
Jos. C. Turnpenny. 
Twelfth mo. 5th, 1842. 
