$0 A TREATISE ON THE CONNECTION OF 



OXALAT OF IRON. 



Nothing certain can be advanced on the subje6l of 

 this salt, farther than that it is decomposed by Hme, mag- 

 jiesia, and alkaHs. 



SALINE SUBSTANCES COMPOSED OF ALKALIS AND ACIDS. 



The nature of the simple earths, and the compounds 

 they form with different acids, having been explained, 

 it ^vill now be proper to give a list of such neutral salts 

 as may be formed by the combination of the acids al- 

 ready' mentioned with alkaline salts. 



These are stated in the following table, to which will 

 be added, under each distiutft head, the peculiar powers 

 of each, in promoting or retarding vegetation, Scc. 



TABLE 



