MISCELLANY. 
77 
3. Hogslard one ounce, which had been melted about a fortnight pre- 
viously, gave, with one drachm, of iodide of potassium, and six grains of 
carbonate of magnesia, an ointment which became yellow and puffy 
whilst it was being rubbed down. 
4. 1 prepared an ointment of one drachm of iodide of potassium, and 
fifteen grains of carbonate of magnesia, and one ounce of hogslard, 
melted twenty days previously, and kept in a well-closed pot. In fifteen 
hours the cap burst, and the ointment was scattered about, appeared 
yellow, puffy, and woolly, and showed very little activity when applied 
to sensitive portions of the skin. 
5. One drachm of iodide of potassium, 15 grains of levigated chalk, 
and one ounce of hogslard (melted twenty days previously.) The oint- 
ment thus prepared was but slightly discoloured in a fortnight, but ap- 
peared to have little activity. 
6. One drachm of iodide of potassium, four grains of potassa fusa, 
and one ounce of old hogslard. In twenty-seven days this ointment 
was but slightly discoloured, and is tolerably white at present, three 
months after its preparation. 
7. R Olei de Cacao 
Cerse Alba? 
01. Amygd. ana §,ss. 
Potassii Iodidi, ^iv. 
Boracis Venet. 
Aq. Destill. ana 9j. 
01. Rosar. gtt ij. M. ft. Ung. 
This ointment is now at three months from the date of preparation un- 
changed. 
8. I£ Cetacei, ^ss. 
01. Olivae gvi. 
Cerae Albas gij. 
Potassii Iodidi, J)iv. 
01. Citri. 
I 01. Rosar. ana gtt iij. M. ft. Ung. 
Is at present, three months since it was made, not perceptibly yellow. — 
Pharm. Journ. from Pharm. Central Blatt. 
Adulteration of Iodine. — M. Herberger draws attention to the fact 
that with the present high price of iodine sophistications are uncom- 
monly frequent. Thus he found in one sample native suiphuret of anti- 
mony. But the adulteration with artificial graphite is far more decep- 
tive ; it may, however, be readily detected by driving off the iodine at a 
gentle heat, and subsequently raising the temperature with access of air. 
