193 
which had the odor of the Siam variety; 8 per cent was insoluble in 
90 per cent alcohol, and contained 1.8 per cent of free benzoic acid 
and 21.78 per cent of combined benzoic acid. — Analytical Notes for 
1906, 1907, p. 9. 
An abstract points out that Sumatra benzoin may be detected in 
tincture of benzoin by evaporating the tincture at from 60° to 70° C. 
and heating the residue previously mixed with a solution of potassium 
permanganate. Sumatra benzoin develops an odor of oil of almonds. 
Siam benzoin, which is free from cinnamic acid, does not develop this 
odor. — Pharm. Ztg., Berl., 1906, v. 51, p. 322. 
Liverseege, L. F., suggests that 16 w/v might be taken as the mini- 
mum requirement of solid extract in compound tincture of benzoin. 
The samples examined varied from 16.7 to 22.6 w/v with an average 
of 18.5 w/v. The specific gravity varied from 0.891 to 0.911. — Year- 
book of Pharmacy, 1906, p. 272. 
BENZOSULPHINIDUM. 
Fernan, Albert, reports finding a sample of commercial saccharin 
with a melting point of 218° C., and an ash content of 2.18 per cent 
largely potassium sulphate. He concludes that the sample was prob- 
abty contaminated with potassium 6>-sulphobenzoate. — Ztschr. d. allg. 
oesterr. Apoth.-Ver., 1906, v. 11, p. 80. 
Gliicksmann, C., discusses the testing and valuation of saccharin, 
reports the findings in several examinations, and points out that sac- 
charin can readily be produced of a much higher per cent of purity 
than that now commercially available. — Pharm. Prax., 1906, v. 5, 
pp. 393-403. 
Fernan, Albert, points out that the method proposed by Gliicks- 
mann is faulty and prefers that by Hefelmann. — Pharm. Post., 1906, 
v. 39,. pp. 212-213. 
Bigelow, TY D., outlines the provisional methods for determining 
saccharin,, both qualitatively as well as quantitatively, as adopted by 
the Association of Official Agricultural Chemists. — Circ. Bur. Chem., 
U. S. Dept. Agric., 1906, No. 28, pp. 6-7. 
Duyk describes and figures an apparatus by which he seeks to 
obviate the employment of excessive amounts of menstrua, the forma- 
tion of rebellious emulsions, and the inevitable loss of liquid through 
the multiplicity of operations in the estimation of saccharin. — Ann. 
de chim. analyt., Par., 1906, v. 11, pp. 82-84. 
BERBERIS. 
Henkel, Alice, mentions Berberis aquifolium Pursh., also known 
as berberis, Oregon grape, holly-leaved barberry, and Pocky Moun- 
tain grape, as a native in woods from Colorado to the Pacific Ocean ; 
11667— Bull. 58—09 13 
