I^o A TREATISE ON THE CONNECTION OF 



kaline salts, neutral salts, &:c. Sec. without risk of any 

 of the attendant disadvantages on the process of paring 

 and burning, a decided preference of course will be due 

 to methods that render this praflice less necessary. 



The simple earths, air, water, saline bodies, vegetable 

 substances, &;c. Sec. having thus been considered, as far 

 as the properties of each relate to the present design, 

 it is now become necessary, previously to any further 

 discussion respe6ling the pra6lical part, to give such di- 

 rections to the cultivators of the soil, as may enable them 

 to ascertain the nature and proportions which the com- 

 ponent parts of it bear to each other; and consequently 

 the value of the surface mould contained in the diffe- 

 rent parts of their farms or estates ; and how, by this 

 information, they may be enabled to apj^ly with most 

 advantage the several ameliorating substances herein re- 

 commended. 



It has not been, nor would it be possible to avoid mak- 

 ing use of chemical terms, consistently with the plan of 



a work 



