CHEMISTRY. 525 



strychnine, even when "he latter is present in comparatively large quan- 

 tity. {Compteg rendiis, xovii, 2C7.) 



A redetermination of the vapor density of ferrous chloride leads Vic- 

 tor Meyer to the conclusion that it consists at lower temperatures of 

 molecules of the formula FczCU, and as the temperature rises these 

 break up into molecules represented by the formula FeClg. In the ex- 

 periments made the temperature reached was not sufiBciently high to 

 entirely produce the latter molecular condition. {Berichte d. chem. (?e«., 

 xviT, 1335.) 



Ammoniacal chloride of silver and the corresponding iodide have 

 been obtained by M. Terrell in crystals. The ammoniacal salts were 

 heated with a saturated solution of ammonia, in a sealed tube, to 100° 

 C, and the silver salt dissolved, when heated, and crystallized out in 

 needles on cooling the tube. Exposed to the air the crystals lose am- 

 monia rapidly. {Bull. soc. cliim., xli, 597.) 



The composition of bleaching powder has been again investigated by 

 Edmond Dreyfus, fle comes to the conclusion that the active principle 

 in the powder is CaHClOz, and that the correct formula for the mixture 

 is 2 CaHClOz + CaClg + 2 H2O. It will be seen he disregards the cal- 

 cium hydroxide, commonly included in the formulte prevailing. {Bull, 

 soc. cliim., XLI, GOO.) 



Investigations made by O. Fisher and G. Thomer on the structure of 

 chrj'saniline lead them to believe that it is a diamidophenylacridine, 

 as they were enabled to obtain not only phenylacridine from chrysani- 

 line, but also to produce the latter in a new way, synthetically. The 

 material used in these experiments was Oehler's phosphine, which, after 

 being purified, crystallizes in long, golden-yellow needles. 



According to a report on the sugar beet industry by M. Pellet, there 

 are in France 527 manufactories, of which 482 were in operation in 

 1883-'84. They produced 425,000,000 kilos of sugar, extracted from 

 6,500,000,000 kilos of sugar-beets. {Bull. soc. chim., xli, 342.) 



Palmitic acid and the palmitins have been. studied anew by Dr. E. 

 H. Chittenden and Herbert E. Smith. The numerous variations in the 

 melting points of the individual fats described lead the authors to be- 

 lieve in the existence of various physical modifications. {Am. Chem. 

 Journ., VI.) 



Prof. Albert R. Leeds published a second memoir on the literature 

 of ozone and peroxide of hydrogen, in which he gives a summary of 

 the discoveries since 1878. {Chem. News, l, 215.) 



Liquid carbon dioxide is now a commercial article, being manufact- 

 ured by the AMicngcsellschaft fur Kohlensiiure Industrie, in Berlin, and 

 sold in iron flasks containing 8 kilos of the liquid. Professor Landolt 

 finds the liquid as sold very convenient for the preparation of solid car- 

 bon dioxide, and describes experiments with the same. {Berichte d. chem. 

 Oes., XVII, 309.) 



Urea had been obtained by E. Drechsel by electrolyzing with alter- 



