190 PHARMACOGNOSY [Bot. Absts., Vol. VI, 



again made slightly alkaline and reextract with chloroform. Evaporate and add small amount 

 of bromine water. A yellow precipitate, or, in the presence of large amounts of sparteine, an 

 orange-colored oil forms, which dissolves on warming. Evaporate solution to dryness on water 

 bath, and while still hot invert over concentrated ammonia water. Beautiful pink color devel- 

 ops if sparteine is present. Will detect 0.0005 gram of alkaloid, providing interfering sub- 

 stances are absent. — For guaiac: Extract with chloroform and separate into two portions. 

 Evaporate one portion to dryness and treat residue with concentrated sulphuric acid. 

 Intense red color indicates guaiac. Shake second portion with an equal volume of bromine 

 water. Sometimes in the presence of guaiac, a sudden flash of purple or blue shoots through 

 the chloroform just as the bromine dissolves in it. Separate chloroform layer and evaporate 

 to dryness. Treat residue with concentrated sulphuric acid. Brilliant green indicates ' 

 guaiac. — Anton Hogstad, Jr. 



1300. Heyl, Frederick W., and Harris H. Hopkins. The ragweed pollen proteins. 

 Jour. Amer. Chem. Soc. 42: 1738-1743. 1920. 



1301. Heyl, Frederick W., and Charles Barkenbus. Some constituents of Viburnum 

 prunifolium. Jour. Amer. Chem. Soc. 42: 1744-1755. 1920. 



1302. Rhodes, Leland B. Cockle-bur oil: a new seed oil. Jour. Amer. Chem. Soc. 42: 

 1502-1507. 1920. 



1303. Rusby, H. H. Codes of botanical nomenclature in the United States Pharmaco- 

 poeia. Jour. Amer. Pharm. Assoc. 9: 670-671. 1920. — A discussion of the so-called American 

 and the so-called International Codes of botanical nomenclature, in which the author states 

 that the latter one is misnamed, because it is not a code in the proper sense of the word, but 

 that the former or the so-called American code is a code as it is based on a governing principle, 

 namely, that priority of publication determines the name for a group or species. The name, 

 however, is misleading as it emanated with a group of especially eminent botanists equally 

 representative of Great Britain, Germany and France. Author states that the U. S. P. 

 should not depart from the so-called American code.— Anton Hogstad, Jr. 



1304. Tsakalotos, A. E. Sind die mydriatischen Alkaloide der Belladonnawurzel bei 

 Gegenwart von Alkohol mit Wasserdampfen fluchtig? [Are the mydriatic alkaloids of Bella- 

 donna root volatile by the addition of alcohol in the presence of steam?] Schweiz. Apotheker- 

 Zeit. 57: 291-292. 1919. — A series of experiments and investigations proving that the alka- 

 loids of belladonna root are not volatile when distilled with steam in the presence of alcohol. 

 — B. H. Hoffstein. 



1305. Viehoever, Arno. Popular names of crude drugs. Jour. Amer. Pharm. Assoc. 9: 

 671-676. 1920.— Author advocates greater care in the use of common names for crude drugs, 

 and in so doing has shown why greater care should be exercised. Paper includes a discussion 

 of the derivation of a number of drug terms, namely those which are derived from the scientific 

 name; those which represent marked changes of the scientific name; those which have no 

 connection with the scientific name but which may be identical with the native name; those 

 which have been derived from physical characters, either of the drug itself or of conspicuous 

 parts of the drug plant and those which have no definite meaning to the general trade. — A 

 series of rules and a discussion of new terms follows. Author suggests that such plants as 

 Spanish Digitalis (Digitalis thapsi) might well be called Digithapsis and that again such a 

 plant as Mexican Scammony (Ipomoea orizabensis) might well be called Orizaba root or Ori- 

 zap, to avoid confusion. He concludes by emphasizing the need of an agreement upon names 

 which are not only simple and acceptable to the trade, but are more generally based upon 

 scientific classification. — Anton Hogstad, Jr. 



