66 
ON THE EFFICACY OF PYRO-ACETIC SPIRIT. 
The syrup of iodide of iron, and syrup of chloride of iron, 
may be made and kept separately, when they can be mixed 
in any proportion, according to the amount of iron or iodine 
the practioner may wish to administer. — Chem.from Lan. 
Note. — The author has not been sufficiently explicit. The following 
formula may be used by those desirous of making the preparation : 
R Iodine, .... 384 grains, Troy 
Hydrochloric acid, sp. gr. 1.16 4? ounces, u 
Sugar, in powder, 12 " 11 
Iron filings 
Water, of each a sufficient quantity. 
Mix the Hydrochloric acid with an ounce and a half of iron filings, 
free from oxide, and allow it to stand, with occasional agitation, until 
the acid is neutrallized, then filter. Next mix the iodine with three 
ounces of water in a flask, add half its weight of iron filings, agitate 
until all the iodine is combined, and filter also. Finally, mix the two 
solutions, add the sugar, and as much water as will make the whole 
measure a pint. The pure sugar is readily dissolved by agitation 
without heat. 
The resulting syrup contains 29 grs. of protodide and 72 grs. of 
protochloride of iron in each fluid ounce, and each fluid dram 3 grs. 
of iodine and 4 of iron. W* P., Jr. 
ART. XXII.— ON THE EFFICACY OF PYRO-aCETIC SPIRIT IN 
GOUT AND RHEUMATISM. 
By John Hastings, M. D. 
It is nearly four years since I called the attention of the 
profession to the remedial powers of pyro-acetic spirit, or 
medicinal naptha, in phthisis. It occasioned a great deal 
of discussion at that period, and many who questioned its 
value then have since acknowledged the truth of my views ; 
and I believe many more would have done so, but unfortu- 
