AGRICULTURE WITH CHEMISTRY. 79 



eleclrive attractions, especially if the neutral salts, used 

 for that purpose, are superacidulated. 



. 



Oxalat of lime is decomposed by fire ; the acid is de- 

 stroyed, and carbonic acid, or fixable air, is formed, and 

 disengaged* 



OXALAT OF MAGNESIA; 



THIS is a soluble salt, and, when not superacidulated, 

 promotes vegetation. It is formed, by adding magnesia, 

 or earthy matters, containing magnesia, to the juice, 

 or salt of sorel ; the superabundant acid of which will 

 combine with the magnesia. It is probable, that that ; 

 part of the juice of sorel, which is in a neutral state, will 

 be decomposed by the greater affinity that magnesia has 

 to the soreline or oxalic acid; and that the vegetable 

 alkali will be disengaged in a mild state, in the same 

 manner as if calcareous matter, or chajk, had been used. 



OXALAT 



