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THE JOUBNAL OF THE not suitable and gives fallacious results. The authors recommend Koevenagel's reagent of Cobalt-sodium-hexanitrite, which produces a yellow precipitate in potassium solutions even as dilute as 1:2000. If 1 percent KCl is permissible in the official NaCl, then no precipitate will be produced in a 5 percent solution of sodium chloride.
Tincturae. The percentage of dry residue serves as the valuation of a great many tinctures, but is expressed as "for the menstruicin" and not as in the finished tincture. That, therefore, the figures are too high can be seen in Tincture Benzoes, which should contain 18 percent of dry residue. Benzoin should contain 90 percent of alcohol soluble resin. The tincture is prepared by macerating 20 parts=18 parts soluble resin, with 100 parts of alcohol. As 118 parts of the finished tincture contain 18 parts of dry residue, therefore the percentage is only 15.25 and not 18. Tinctura Strophanti. The seventh edition ordered the seed to be deoleated with ether, which, on account of also dissolving some strophantin, was changed to petroleum ether. The tincture was prepared with 90 percent alcohol. The eighth edition orders the bruised seed to be percolated with diluted (68%) alcohol into a 10 percent tincture. This preparation is unsatisfactory, as oil drops separate, gets turbid in cold weather and does not mix clear with water. The authors recommend that the drug should be standardized and that the tincture should be prepared from deoleated seed. (Such a tincture is also better tolerated by a weak stomach, not causing nausea.-0. R.)-Ph.
Post, 1912, NO. 4, 37-41. 0. R.
: Legality of Name.-The City of Carlsbad petitioned that this name be deleted from the Hungaria_n Pharmacopoeia, on account of being a trademark infringement. It was further suggested to change the title to Sal factitium typi salis Karolini. The Hungarian health board, however, decided that the present title shall be retained, as it is well known to physicians and the public, and that the designation ''artificial" cannot cause any misrepresentation or confusion, and is therefore no infringement on the rights of the city of Carlsbad and its "natural" salt.-Ph.
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