512 Chemisches, Pharmaceutisches. — Personalnahrichten. 



grande proportion; il est localise dans les cellules ä huile essentielle 

 de l'ecorce et de la moelle ainsi que dans Celles de l'epiderme, 

 rhypoderme et le über. 



Dans le rhizome frais d^ Acorus Cnlainus on trouve de Tasarone 

 dans les cellules ä essencc, localisees aux points de jonction des 

 mailies. 



Dans les rhizomes secs de ces deux plantes on ne trouve plus 

 que de rares cellules ä asarone. 



Asarutn cmiadeuse ne possede pas d'asarone. F. Jadin. 



Evans, J., Testino- of Drugs for Purity. (Pharm. Journ. July 21^^ 



1906.) 



Microscopical examination of ground ginger shows preponderating 

 starch granules which are very characteristic in form and can be 

 readity distinguished from adulterants. In the best ground gingers 

 there is very little of the cortical tissue. One of the chief adulterants 

 is exhausted ginger. A genuine sample should yield not less than 1.5 

 percent of soluble ash and not less than 8.5 percent of cold water extract. 



Mustard is composed chiefl}- of soft parenchymatous cells 

 without any starch granules. The presence of starch is a sure 

 indication of adulteration. Wheat ftower is often added and the tint 

 restored by turmeric. E. Drabble (Liverpool.) 



Fenton, H. J. H., New Test for Sugar. (Lancet. Jan. 26th 1907.) 



Under action of hydrobromic acid in certain conditions all 

 hexoses and pol5^hexoses yield a certain amount of bromomethyl- 

 furfurol CHg Br. — Q H2 O — CHO. This substance reacts with malonic 

 ester in presence of alkalies giving a substance with powerful blue 

 fluorescence. A smal quantity of the liquid to be tested is poured 

 into a excess of solid anhydrous calciumchloride to form a pasty 

 mass. 10 mils of toluene containing 2 to 3 drops of P Brg are added 

 and the mixture is boiled for a few minutes, carefully as the toluene 

 is inflamable. The toluene Solution is now poured off and cooled. To it 

 are added one mil. of malonic ester and a little alcohol. On neutralizing 

 with KOH a pink colour is usually developed. The mixture is now 

 diluted with alcohol and a few drops of water. If sugar were originally 

 present the Solution will exhibit a blue fluorescence. This reaction, 

 seems to be given only by sugars with six or more atoms of carbon 

 in the molecule. E. Drabble (Liverpool.) 



Personalnaehriehten. 



In den Ruhestand trat: Prof. Dr. E. A. Goeldi, Dir. des 

 Mus. Goeldi in Para (Brasilien). 



Ernannt: Dr. J. Huber zum Dir. des Mus. Goeldi in Para 

 (Brasilien). 



Gestorben: Prof. N. N. v. Spesehnew^, Dir. des mykol. Labor. 

 zu Tiflis am 11 März. 



Ausgegeben: 14 IMai IDOy. 



Verlag von Gustav Fischer in Jena. 

 Buchdruckerei A. W. Sijthoff in Leiden. 



