SIB B. C. KRODIE ON THE CALCTTLUS OF CHEMICAL OPEBATIOJfS. 



which in all cases admit of the minimum solutions, 



m = ^2* 



84T 



mi =2^2, 



w=0, 

 «i=0, 



and we have 



Symbol of chloride of cadmium . . (»%'«,)*', 



Symbol of cadmium «2- 



Or, assuming as the most probable hypothesis (in default of further information) that 

 ^2=1? we have 



Symbol of chloride of cadmium . . ay^^t^-^ 

 We hence arrive at the following symbols : — 



Combinations of the Prime Factors a, $, 0, x, 



and x^. 



Symiol of Silver. — Lastly, I will give one example of a class of symbols in regard to 

 which we have even less positive knowledge, and are thrown almost exclusively upon 

 hypothesis. 



The specific heat of silver is 0-05701, whence the calculated value of A 



(putting ^=q:q^^ is 57-6. 

 Now the percentage composition of chloride of silver is 



Silver 75-26 



Chlorine 24-74 



whence, putting 



and 



100-00 



""/C^'fr as the symbol of chloride of silver, 

 «"%"'§?' as the symbol of silver, 

 a-)^ as the symbol of chlorine, 



6y2 



