504 
Halliday, W. F., thinks that many druggists, in place of turning 
to the U. S. P. in making tinctures, will take the fluid extract bottle 
and, turning to the back of the bottle, there find the formula for the 
tincture. This he thinks the handiest nad quickest method, but he 
notes that the resulting tincture of aconite, for instance, would be 35 
instead of 10 per cent. — Proc. North Dakota Pharm. Ass., 1906, p. 86. 
Carmichael, T. H., points out that in the Homoeopathic Pharma- 
copoeia of the Uniteol States the modern methods of percolation and 
maceration are employed, and the fresh plant tinctures are so made as 
to represent a drug strength of one part of crude dried drug in every 
ten parts of tincture irrespective of the season (whether it be wet 
or dry). This uniform strength of one-tenth was carefully selected 
as the strongest justifiable. He further points out that this is also 
considered the best uniform strength by the United States Pharma- 
copoeia. — Trans, Am. Inst. Homoeop., 1906, 62d ses., p. 229. 
For individual U. S. P. tinctures see under the drug. 
TINCTTTRA ANTIPERIODICA N. F. 
Caldwell, Paul, believes that a good tincture may be made from 
the formula for antiperiodic tincture by maceration, without the 
more laborious procedure prescribed. He also believes that the qui- 
nine sulphate might well have been changed to the bisulphate.— 
Drug. Circ. & Chem. Gaz., N. Y., 1906, v. 50, p. 393. 
Utecli, P. H., suggests that the drugs for antiperiodic tincture 
N. F. be macerated for forty-eight hours in place of “ digesting ” 
the powder as directed in the National Formulary. — Proc. Pennsyl- 
vania Pharm. Ass., 1906, p. 81. 
TINCTURA PERSIONIS N. F. 
Ohliger, "Willard, reports cudbear in some cases either extracted 
or originally of very poor quality. One sample was entirely devoid 
of coloring power. — Proc. Michigan Pharm. Ass., 1906, p. 47. 
Dunning, IT. A. B., suggests the use of powdered paper as a dilu- 
ent for cudbear in making the tincture b}^ percolation. — Proc. Am. 
Pharm. Ass., 1906, v. 54, p. 485. 
TRAGACANTHA. 
Philipp Roder, Wien, reports on two samples of tragacanth which 
contained 2.89 and 2.95 per cent of ash, respectively. — Pharm. Post, 
Wien, 1906, v. 39, p. 298. 
Ohliger, Willard, reports tragacanth, powdered, adulterated with 
corn and wheat starch. — Proc. Michigan Pharm. Ass., 1906, p. 48. 
