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The American Journal of Pharmacy, 1882, Vol. 54 (Classic Reprint)
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Barnes and Noble
The American Journal of Pharmacy, 1882, Vol. 54 (Classic Reprint)
Current price: $20.97
Barnes and Noble
The American Journal of Pharmacy, 1882, Vol. 54 (Classic Reprint)
Current price: $20.97
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Excerpt from The American Journal of Pharmacy, 1882, Vol. 54
I. Preparation OF sample - The bark was obtained at a whole sale drug house in this city and, after careful garbling, was reduced to a moderately fine powder and placed in a clean dry bottle.
II. Estimation OF moisture - Five grams of the powdered bark were dried for about 4 hours at 200°f., weighing at different times to determine when it ceased to lose weight. Loss, by this treatment, per cent.
III. Estimation OF ash. - Two grams of the powdered bark were placed in a weighed crucible and, after careful ignition, the weight of residue was determined. This gave per cent. Of ash.
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