No. 1, May, 1921] PHARMACOGNOSY 83 



587. Holmes, E. M. Note on Uzara. Pharm. Jour. 105: 507. 1920.— The plant yielding 

 the root constituting this proprietary preparation appears to be Schizoglossum Shirense, 

 N. E. Brown, described in Kew Bull. Miss. Inf. 1895: 253. 1895.— .E. N. Gathercoal. 



588. VAN Ketel, B. a. Een nieuwe methode voor de quantitative bepaling van v^erkzame 

 bestanddeelen in grondstoffen, in het bijzonder in Kinabast. [A new method for the quantita- 

 tive estimation of the active principles in drugs and especially in cinchona bark.] Pharm. 

 Weekblad 57: 650-651. 1920. — The following method, which, as the author believes, very 

 probably can be adapted for the estimation of the alkaloids in other plants also, has given 

 good results in the estimation of cinchona alkaloids. Four to 5 gms. of the powdered cinchona 

 bark are mixed with slaked lime and triturated with sufficient ammonia water to obtain a 

 granular mass. This is extracted with chloroform in an extraction apparatus and the solu- 

 tion is evaporated to dryness. As an alternative process the author recommends extracting 

 the mixture of bark, lime, and ammonia with benzene. — H. Engelhardt. 



589. Leclerc, H. La verveine (Verbena officinalis). [Vervain (Verbena oflficinalis).] 

 Bull. Sci. Pharm. 27: 104-109. 1920. — A short description of this and allied plants and a 

 history of their use in therapeutics. — H. Engelhardt. 



590. Massy. Les goudrons vegetaux sur le marche de Meknes (Maroc). [The vegetable 

 tars on the market at Meknes (Morocco).] Jour. Pharm. et Chimie 21:433-439. 1920. — A 

 chemical study of the tars gatrane er-rekik obtained from the cedar tree, gatrane er-relid 

 obtained from Thuja, amine obtained from a tree which probably is Juniperus phoenicea, and 

 oil of cade obtained from Juniperus oxycedrus. — H. Engelhardt. 



591. Netolitsky, F. Eine Methode zur makrochemischen Untersuchung von Zellin- 

 haltskorpern. [A method for the macroscopic study of cell inclusions.] Biochem. Zeitschr. 

 93 : 226-229. 1919. — Pulverized plant material was shaken with inactive liquids of high 

 specific gravity (chloroform, carbon tetrachloride, bromoform). The differential sedimen- 

 tation afforded a means of separating the materials to be examined (crystals, cystoliths, 

 hairs, etc.) from the impurities in the plant powders. — W. W. Bonus. 



592. Mooyen, a. M. Het Urson en zijne verspreiding in het plantenrijk. [Urson and its 

 occurrence in the vegetable kingdom.] Pharm. Weekblad 57: 1128-1142. 1920. — All plants of 

 the Ericaceae contain urson, which is also present in various species of Epacris, in crowberry, 

 and in four species of ivy. Urson has the empirical formula C29H47O.COOH, forms a well- 

 crystallized methylester and crystallizable potassium and sodium salts. It does not possess 

 a double bond nor does it contain hydroxyl, ketonic, aldehydic, or methoxylic groups. — 

 H. Engelhardt. 



593. RoTHEA, F. Toxicite des coques de cacao dans I'alimentation des chevaux et du 

 betail. [Toxicity of cacao shells when used as feed for horses and cattle.] Bull. Sci. Pharm. 

 27:355-356. 1920. — A number of cases of poisoning of horses and other domestic animals 

 were traced to the presence of as much as 0.7 per cent of theobromine and 0.26 per cent of caf- 

 feine in the shells. Therefore, only shells from which the alkaloids have been extracted should 

 be used, and it is recommended that such shells be fed only in mixtures with other feed. — 

 H. Engelhardt. 



594. Tanret, G. Les alkaloides du grenadier. [The alkaloids of pomegranate.] Bull. 

 Sci. Pharm. 27: 486-493. 1920. — The author discusses and criticizes the work of Hess and 

 EiCHEL on this subject and sustains the view of Ch. Tanret in regard to the chemical con- 

 stitution of the various alkaloids in pomegranate. — H. Engelhardt. 



595. Urk, H. W. van. Bijdrage tot de kennis van Peucedanum sativum (Pastinaca sativa 

 L.) II Mikrochemie en Andtomie. [Contribution to the knowledge of Peucedanum sativum. 

 (Pastinaca sativa L.) II Microchemistry and anatomy.] Pharm. Weekblad 57: 883-887. Fig. 7. 



