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PHARMACEUTICAL MEETINGS. 
MINUTES OF THE PHARMACEUTICAL MEETINGS. 
May 1st, 1843. 
Dr. Carson in the Chair. 
The minutes of the last meeting were read and adopted. 
The Journal de Chimie Medicale, for March, the Journal 
de Pharmacie et de Chimie, for February, and the American 
Journal of Pharmacy, for April, were laid on the table. 
A communication from Augustine Duhamel, on " Cam- 
phorated Tincture of Soap," as prepared by the formula of 
the U. S. Pharmacopoeia, was read and referred for conside- 
ration to W. Procter, Jr., and H. W. Worthington. The 
paper was accompanied by two specimens; one made by 
the formula of the Pharmacopoeia, amd the other by direct 
tions given in the essay. 
A specimen of Citrate of Iron was presented by William 
Procter, Jr., who stated that it was composed of two parts 
of peroxide of iron, and three parts of citric acid ; and that 
it was a point of great importance in its preparation to 
avoid a boiling temperature, because the texture, or consist- 
ence, of the oxide is thereby changed, and combines less 
readily with the acid. 
A quantity of the fecula of the virum triphyllum was 
presented by Daniel S. Jones, by whom it was prepared. 
It had all the good qualities of the Bermuda arrow-root, 
though less brilliant in its appearance, owing to the granules 
being more minute. 
Several recent tubers of the Maranta arundinacea were 
exhibited to the meeting by William Procter, Jr., who 
had received them from Bermuda. 
Dr. Carson called the attention of the meeting to the 
subject of the adulteration of olive oil with lard oil. He 
