304 Dr. Vohl on Phaseomannite, 



and cinnamide, . ., ^ 



Cinnamide. Benzamide. 



and also that the analyses of liipparaffine (a product of deconi'^ 

 position of liippuric acid) agree very closely with those of this 

 body. 



,1' Dr. "Vohl* describes a triple salt of sulphate of,magnesia> 

 manganese, and zinc. It is obtained by leaving to spontaneous 

 evaporation, at a temperature of 9^ C, a mixture in equivalent 

 proportions of the sulphates of magnesia, zinc, and manganeses 

 It crystallizes in large plates, and columns of a clear rose colour< 

 of the form of sulphate of magnesia, and has the following com^^ 

 position :— y* 



MgO, SO3 + MnO,SOHZnO,SO3 + 2IH0. ! 



If sulphate of potash or ammonia be added, the corresponding 

 triple salt, with 18 equivs. of water, is obtained, 3 equivs. of 

 water being replaced by an alkaline sulphate. ]. 



The isame" dhtithifet obtainedf frbm the unripe fruit of the 

 Pkaseolus vulgaris, a new saccharine matter. The fresh unripe 

 fruit is heated some time in steam, or dipped in boiling water 

 and then pressed in a mill. The juice is mixed with yeas^h 

 and submitted to fermentation, then neutrahzed with chalk, 

 the mass evaporated and exhausted with alcohol. On gentle 

 evaporation, a body crystallizing in needles was obtained. The 

 comportment of this substance with sulphate of copper and' 

 free alkali, as well as its unfermentiscibility, place it near man- 

 nite; on the other hand, its corapoi'tment in dry air and its 

 composition, are very different from those of that body. The 

 formula of the body dried at 100° C. is C^i H^^ O^^, that of man- 

 nite is C^^ H^^O^^.*^ Vohl proposes for it the name Phaseoman- 

 nite, and promises a more complete account ]ivhen he is able to 

 prepare more substance. 



GossmannJ recommends the use of manganate of potash as 

 a decolorizer of organic bodies, and states that he has employed 

 it in purifying uric, hippuric, and cyanuric acids, vvitk great 

 success. " ' ' * 



* Liebig's Annakn, July, p. 124. f Ibid. p. 125. 



J Ibid. Sept* p. 373. 



,il^# 



