22G Professors Redtenbacher and Liebig 



With such coincidence as is exhibited in our analyses, the 

 existence of any foreign admixture in these salts, which could 

 have increased the atomic weight of carbon, cannot be sup- 

 posed. We have, however, still another direct proof of their 

 correctness, viz. in the results which Berzelius obtained in his 

 analyses of the tartrate, and of the racemate of lead. These 

 were as follows : — 



Tartrate of head. 



Racemate of Lead. 



(Mean of several experiments.) 



2*000 of the salt gave 1*2550 oxide of lead, from which we 



obtain 2222*290 as the atomic weight of the salt, 302*842 as 



the sum of the four atoms of carbon, and 75-711 as the atomic 



weight of carbon. 



The results of our analyses of the acetates, tartrates, race- 

 mates, and malates of silver, give as the mean of five experi- 

 ments with each, the following proportions : — 



