178 
Schulze, Fr., elaborates on a former contribution and gives his 
results with the several methods for estimating glycerin in fats and 
oils in soaps and in glycerin preparations. — Chem. Ztg. Cothen, 1905, 
v. 29, p. 976. 
Strauss, H., outlines a method for the determination of glycerol in 
soap lyes, based on the oxidation of the glycerol by means of potas- 
sium bichromate and sulphuric acid. — J. Soc. Chem. Ind., Lond., 
1905, v. 24, p. 1128 (from Chem. Ztg. Cothen). 
Shukoff and Schestakoff (Ztschr. f. angw. Chem., 1905, v. 18, p. 
294) outline a method for the direct determination of glycerin in 
solutions. — Abstr. in Pliarm. J., Lond., 1905, v. 21, p. 761. 
Pope, Lester, criticises the use of glycerin in ointments and sug- 
gests the use of castor oil in preference. — Drug. Circ. & Chem. Gaz., 
N. Y., 1905, v. 49, p. 396. 
GLYCERITA. 
Caldwell, Paul, asserts that it is difficult so to regulate the heat in 
making glycerite of boroglycerin as to keep the finished product from 
having a distinct brown color. He believes a vacuum pan is essential 
for the successful production of this preparation. He believes it 
impracticable for the retail druggist to make glycerite of hydrastis, 
on account of the cost. He suggests the use of an alternative formula 
and the introduction of an alcoholic extract of hydrastis. — Drug. 
Circ. & Chem. Gaz., N. Y., 1905, v. 49, p. 306. 
Hommell, P. E., recommends a glycerite of elm bark as a vehicle 
for bismuth salts, chalk, magnesia, and a number of other substances 
where a demulcent, mucilaginous vehicle is desirable. He recom- 
mends the following formula: Slippery elm bark, 10 parts; glycerin, 
25 parts ; water, a sufficient quantity to make 100 parts. Boil the bark 
with the water for five minutes, macerate two hours, strain, and add 
water enough to make 75 parts, add the glycerin, and filter. — Apothe- 
cary, Boston, 1905, v. 17, p. 616. 
“A Junior Pharmacist ” points out that the easiest, though not the 
most rapid, way to make glycerite of tannic acid is to weigh and mix 
the ingredients and allow to stand in the cold, with occasional agita- 
tion. This preparation requires two or three days for complete solu- 
tion. — Pharm. J., Lond., 1905, v. 21, p. 462. 
I 
GLYCYRRHIZA. 
True, Rodney H., mentions the fact that the licorice plant thrives | 
in various localities in this country, and points out the possibility of 
growing it on a commercial scale. — Proc. Am. Pharm. Ass., 1905, 
v. 53, p.273. 
Gadd and Gadd point out that while microscopic examination is 
the best indication of quality the determination of ash is a ready, if 
