384 Miscellaneous Intelligence. 



18. Muriates of Baryta, Slrontia, and Lime. — Mr. Phillips has 

 examined the various statements given of the composition of the salt 

 sometimes called chloride of barium, and sometimes muriate of baryta. 

 Although the relative proportions of chlorine and barium existing in 

 it, as a chloride, and of muriatic acid and baryta afforded by it when 

 considered as a muriate, have been ascertained with considerable pre- 

 cision, yet the accurate proportions of the crystallized salt have not 

 been stated. Mr. Phillips, on a careful comparison of the various 

 analysis that have been made, states its composition to be as a 

 chloride, 



1 atom chloride barium 106 Chlorine .... 2.9.03 



2 water .... 18 or Barium .... 56.45 



Wafer 14.52 



124 



100.00 

 or as a muriate, 



1 atom mur. barytes . 115 Muriatic acid . 29-84 



1 water .... 9 or Barytes .... 62.90 



Water 7-'26 



124 



100.00 

 The equivalent numbers of crystallized muriate of strontia are 

 1 atom chloride stront. 36 + 44= SO 

 6 water 9x6 = 54 



134 

 or 1 atom mur. strontia 37 + 52 = 89 



5 water 9 X 5 = 45 



134 

 The equivalent numbers of crystallized muriate of lime are 

 1 atom chloride of calcium . . 36 + 20 = 56 



6 water 9 X 6 = 54 



100 



or 1 atom mur. lime . . oj + 2S = 65 

 5 water .... 9 x 5 = 45 



1 10— Ann. Phil. N.S. vi. 339. 



19- On a Quadruple Salt. — Whilst separating cadmium from the 

 metals which always accompany it, M. Tassaert had occasion to 

 observe the formation of a singular salt. The ore of zinc had been 

 dissolved in sulphuric acid and ammonia added, but not to neutraliza- 

 tion; a plate of zinc was then added, which, after some time, was 

 found covered with colourless transparent crystals. These, separated 

 and examined, were found to contain ammonia, sulphuric acid, oxide 



