[ ^65 ] 



And 100 parts cryftallized murlated lead contain 81,77 calx of 

 lead (= 71,11 metallic lead,) and 18,23 of ^^^^ marine acid. 



And ido grains thoroughly deficcated muriated lead contain 

 83 calx of lead (= 75,12 metallic lead,) and 17 of real marine 

 acid. 



According to Wenzel, 100 grains metallic lead fhould afford 

 137,5 of deficcated muriated lead; he probably dried it fome- 

 what lefs than Klaproth had done. The proportions of lead and 

 acid he could not well determine, the esiftence and proportion of 

 oxygen not being known when he wrote. 



Note. The quantity of metallic lead obtained from 100 parts 

 cryftallized muriated lead by fufion with black flux is much 

 fmallerthan that above ftated. (fee i Klapr. 171,) as much is 

 retained by that flux. Yet fee 3 Weftrumb. Phyfical and Chem. 

 Abhandl. 383. 



Of Aerated Vol-Alkali and Ammoniacal Salts. 



The former experiments which I made with a view of afcertain- 

 ing the proportion of ingredients in thefe falts were defedive in 

 feveral refpeds : , • 



Vol. VII. L 1 ift 



