No. 1, August, 1920] PHARMACOGNOM ] 07 



develops. In the dry season the leaves are cut off and placed in a \ -shaped container -I ml 

 on one side in order to allow the juice to drain. This i.~ i ollected in empty coal-oil . • 

 the contents of the cans is then transferred to large copper kettl in which the j . con- 



centrated to the desired consistence; it is then run into lined petroleum boxes or into 



gourds. The plant, which prefers a dry, chalky soil, yields aloes for about 12 ; 

 this time it lias to be dug up and the soil is properly manured and replanted. — H. Eng 



791. Escobar, Romulo. La Cicuta. [Cicuta.] icultor Mexicano 36: 6-8. I 

 Description of the plant of water hemlock (Cicuta sp.), Bymptoms of the poisoning indu 

 in sheep, and methods of eradicating the plant. — John A. St 



792. Ewe, George E. Chinese cantharides. [Mylabris Cichorii.J A worthy candidate 

 for admission to the U. S. P. Jour. Anier. Pharm. Assoc. 9: 27)7 -263. 1920. — Upon experimen- 

 tation, employing a series of physiological 1 es1 s on horses, it was found that Mylabr > orii 

 has a vesicating and rubefacient power equal to the U. S. P. varieties. The cantharidin 

 content on the average was found to be 50 per cent greater than the U. S. P. variet 

 Author also states that the material is cheaper and more available at the present time. — .1 1 

 Hogstad, Jr. 



793. Ewe, George E. The assay of calabar beans and its preparations. Jour. Amcr. 

 Pharm. Assoc. 8: 1006-1009. 1919. — Author was unable to obtain satisfactory results with 

 the present U. S. P. method for the assay of calabar beans and its preparations. He believes 

 the loss to be due partly to incomplete extraction and partly to decomposition of alkaloids 

 by numerous manipulations and vigorous heating treatments and by long exposure to light 

 required in carrying out the process. Methods of the writer are given for the assay of the 

 drug and its preparations. — Anton Hogstad, Jr. 



794. Ewixg, C. O. White pine bark adulterated with elm bark. Jour. Amer. Pharm. 

 Assoc. 9: 253. 1920. — Upon examination a shipment of white pine bark collected in Michigan 

 was found to contain elm bark. The outer part of the bale, to the depth of about 1 foot, con- 

 sisted almost entirely of the rossed outer bark of Ulmusfulva. — Anton Hogstad, Jr. 



795. Ewing, Clare Olix, and Arxo Viehoever. Acid-insoluble ash standards for 

 crude drugs. Jour. Amer. Pharm. Assoc. 8: 725-730. 1919. — Upon reviewing the analyses 

 of a considerable number of domestic and imported crude drugs with regard to their content 

 of ash and acid-insoluble ash, authors noted in a number of instances where a striking dis- 

 crepancy occurred between the general run of analyses and the U. S. P. and N. F. standards. 

 The authors suggest, as an expression of their personal opinion that an extension of ash 

 standards including limits for acid-insoluble ash would be very much preferable to present 

 standards and that it should not only be included in the U. S. P. but should be extended. 

 The authors then discuss the question of ash contents of several drugs, namely asafoetida, 

 hydrastis, hyoscyamus, mustard, rhubarb and sassafras, emphasizing the need of acid- 

 insoluble ash standards. Simple method of writers included for determining acid-insoluble 

 ash content. — Anton Hogstad, Jr. 



796. Farwell, Oliver A. Cramp bark, highbush cranberry. The Druggist 2: 13. 

 1920. — It has been known since 1913 that the commercial Cramp Bark is the product of Acer 

 spicatum Lam. and not the true Viburnum Opulus var. americanum, Mill, as required in the 

 National Formulary and as stated in the text books. Farwell now produces evidence to show 

 that as long ago as 1S70 the Acer bark had displaced the true Viburnum bark. — Wm. B. Day. 



797. Fishlock, W. C. Bay leaves (Pimenta acris). Report on the Agricultural Depart- 

 ment, Tortola, 1917-18, 6. Imperial Department of Agriculture, Barbados. 1919. — A ref- 

 erence is made here to the existence of "false" or bad varieties of the bay tree whose leaves 

 yield an oil of inferior quality for making bay rum. — J. S. Dash. 



