51 



Sdmk Nkw Lauokatdkv Ai'i'LiAXCEs IN CiiKMisruv. I')V II. A. FIi>;ton. 



[Abstract.] 

 A iiiachiiie for iiso in inakinti; solutions of ditiiculty soluble substances at 

 ▼arious tiMnpi-raturi's was ilescribeil. Also a new form of stirring macliino for 

 use in precipitatini;' aninioniuni. niagMiesiuni phosphate and similar work. 

 < 'nts aro necessary for :i full inuKTstanding of tlu' paper. 



VoLi-METRic Determination of PiiospiioRrs in Steel. P>y \V. A. Noyes 



AND J. S. ROYSE. 



The ArTioN of Ammonia Uj'ON Dextrose. By W. E. Stone. 

 [Abstract.] 



De.xtrose is commonly regarded as belonging to the class of chemical com- 

 pounds known as aldehydes. Several of the characteristic reactions of this class 

 of compounds are, however, not given by dextrose or have not been heretofore 

 observed. C'liief among these are the reaction with a decolorized fuchsin solution 

 and the formation of anjiyonia compounds. 



This paper describes the preparation and properties of a crystallenic com- 

 pound of dextrose with ammonia which seems to belong to the class of aldehyde- 

 ammonia derivatives. Its importance lies in the contribution of this new proof 

 of the aldehyde character of this typical sugar and that without much doubt a 

 whole series of such derivatives can be prepared from the other so-called glucose 

 sugars. 



Action ok Zinc Ethyl on Ferric Chloride and Ferric Bromide. By If. 

 H. Uallard. 



Tju; Sui;ar of the Century Plant. By W. E. Stone and D. Lotz. 



[Abstract.] 

 The ''maguey" plant or Af/are Americana furnishes the materials for many 

 important industries in Mexico. Its juices obtained at the Howering period con- 

 tain ab(jut 15 per cent, of a fermentable sugar. By their alcoholic fermentation 

 are produced several beverages of more or less intt>xicating nature. The fibre of 

 the leaves is utilized in many ways and the juices of the plant when treated with 

 -ash lye make a kind of soap. 



