Test for the purity of Olive Oil.—Dr. Ramon Codina Langlies, pharmacist in Barcelona, uses the following test for proving the purity of olive oil: 3 parts nitric, acid, spec. gr. 1.33, are diluted with 1 part of water. 1 grm. of this acid is added to 3 grm. of the oil; on the application of heat by means of a water-bath the color of pure olive oil becomes somewhat lighter, but acquires a red tint in the presence of benne oil; 5 per cent. of the latter are readily detected. The operation requires only 15 to 20 minutes, and the coloration remains un-changed for several days.—Journ. de Pharm.
Erythrocentaurin (see this Journal, page 207.) is, according to Méhu, contained also in the herb of Erythraea chilensis, Pers.—Journ. de Pharm., June, 1870.
The American Journal of Pharmacy, Vol. XLIII, 1871, was edited by William Procter, Jr. (Issues 1-4) and John M. Maisch (Issues 5-12).