SILVER. 431 



Now, as 4 '5 is the weight of an atom of chlo- 

 rine, and as the chloride is neutral, it is obvious 

 that 13-75 must represent the weight of an atom 

 of silver. 



We have various analyses of the chloride of 

 silver by preceding chemists ; some of which it 

 will be worth our while to state. 



According to Dr. Marcet,* it is composed of 



Chlorine 4-5 



Silver 13-844 



According to M. Gay-Lussac,* its constituents 

 are 



Chlorine 4-5 



Silver 13-683 



According to Berzelius,t it consists of 



Chlorine 4-5 



Silver 13-758 



This determination of JBerzelius differs from 

 mine by only rrVgth part, a quantity so small, Difficulties 

 that in almost every case of chemical analysis it lysis, 

 may be neglected. I am almost ashamed to 

 acknowledge the great number of times that I 

 repeated this experiment before I could obtain 

 what I considered as perfect accuracy. I began 

 by employing the lunar caustic of commerce ; 



* Annals of Philosophy, XII. 347. f Afhandlingar, III. 192, 



