SILVER, POTASSIUM, ETC. 19 



First Series. 

 69.105 

 69.104 

 69. 103 

 • 69.104 



69.102 



Mean, 69.1036, zh .0003 



Second Series. 

 69.105 

 69.099 

 69.107 

 69.103 

 69.103 

 69.105 

 69.104 

 69.099 

 69. 1034 

 69.104 

 69.103 

 69.102 

 69.104 

 69.104 

 69.105 

 69.103 

 69,101 

 60.105 

 69. 103 



Mean, 69.1033, ±.0003 



Now, combining the three series, with their thirty experi- 

 ments, we get the following : 



Marignac 69.062, =b .0017 



Stas, 1st series 69.1036, ± .0003 



Stas, 2d series 69.1033, zh .0003 



General mean. 69.1032, rh .0002 



The quantity of silver chloride which can be formed from 

 a known weight of potassium chloride has also been deter- 

 mined by Berzelius, Marignac, and Maumene. Berzelius* 

 found that 100 parts of KCl were equivalent to 194.2 of 



* Poggend. Annal., 8, 1. 1826. 



