No. 1, August, 1920] PHARMACOGNOSY L05 



771. Zweigelt, Fritz. Biologische Studien an Blattlausen und ihren Wirtspflanzen. 

 [Biological studies of aphides and their host plants. | Verhandl. Zool.-Bot. GeselL Wien 68: 

 124-142. 4 fin. 1918. -Pari I. Mechanics of sap extinction by aphides. Pari 2. Anatomy 

 and etiology of aphis galls and the r61e of the plant in formation of roll galls. Pari 3. Role 

 of the insect information of galls. [Through abstr. byMATOUSCHBK in Zeitschr. Pflanzenkr. 

 29:217-219. 1919.]— D. Roddick. 



PHARMACOGNOSY AND PHARMACEUTICAL BOTANY 



Heber W. Youngkkx, Editor 



775. Albertus, Halvar. Bidrag till kannedom om hesperidinliknande kropparsfore- 

 komst inom familjen Labiatae. [Contribution to the knowledge of the occurrence of Hesperidin- 

 like bodes in the family Labiatae.] Svensk. Farm. Tidskr. 23: G09. 1919. — A microscopic 

 study was made of the stems, leaves, and in some cases the flowers of over 100 members of the 

 family Labiatae for the presence of hesperidin-like bodies. When found, their solubility in 

 caustic soda solution, concentrated sulphuric acid, concentrated ammonia and chloral hydrate 

 was determined. — A. M. Hjort. 



776. Anonymous. Production of Pyrethrum flowers in Japan. Sci. Amer. Supplem. 88 : 

 305. 1919. [From Commerce Reports.] — A short article on the growing of Chrysanthemum 

 parthenium, with cost and production statistics. — Chas. H. Otis. 



777. Anonymous. Why the castor-oil plant is called Palma Christi. Sci. Amer. Supplem. 

 88:376. 1919. 



778. Babe, E., and Teodoro Cabrera. Clitorina, nuevo reactivo indicador de acidos 

 y alcalis. [Clitorina, a new chemical indicator.] Revist. Agric. Com. y Trab. 2: 537-539. 

 1 fig. 1919. — The name "Clitorina" is given to an indicator made by extracting with 95 per 

 cent alcohol the coloring matter from the flowers of a double blue variety of butterfly pea, 

 Clitoria tematea L. This was found to be superior to phenolphthalein for detecting minute 

 adulterations of milk with potash solutions. It was also found to be superior to phenol- 

 phthalein and tincture of cochineal as an indicator in some other reactions. — F. M. Blodgctt. 



779. Ballard, C. W. The identification of gums by the phenylhydrazine reaction. Jour. 

 Amer. Pharm. Assoc. 9: 31-38. Fig. 1-15. 1920. — Author has made a study of the character 

 of the ozazones prepared from different drugs as althaea, peach kernels, sassafras pith, brown 

 mustard, yellow mustard, elm bark, apricot kernels, tragacanth, acacia, quince seed, linseed, 

 Indian gum, and bitter almond kernels. Method of application of test is given with sketches 

 and description of the ozazones from the various drugs. — Anton Hogstad, Jr. 



/80. Beal, George D., and Thomas S. Hamilton. The "Shaking-out" method for the 

 quantitative estimation of alkaloids. II. Jour. Amer. Pharm. Assoc. 9: 9-15. 1920. — Lead 

 acetate when used as a clarifier for alkaloidal extracts has no harmful effect upon the extrac- 

 tion of the alkaloid by immiscible solvents, and that the addition of sodium chloride after 

 clarification increases the quantity of alkaloid removed at a single extraction. Employing 

 the use of amyl alcohol for morphine determinations a residue of anhydrous morphine could 

 be obtained. — Anton Hogstad, Jr. 



781. Beath, O. A. The chemical examination of three species of larkspur. Wyoming 

 Agric. Exp. Sta. Bull. 120: 55-88. PI. 1-11, 4 fig. 1919.— A bulletin in four parts, dealing with 

 the poisonous properties of the three species, Delphinium barbeyi, D. glatice&cens, and D. 

 geyeri. Part 1 is general in its scope, dealing with the distribution, a review of the literature, 

 losses to stock, toxicity as effected by age, acidity, seasonal variat ions of the poisons, charac- 

 teristic symptoms. Part 2 deals with the experimental methods employed including the 

 determination of the crude alkaloids, preparation and properties of water extracts, and the 



