f 



AGRICULTURE WITH CHEMISTRY. 



pervious to water. This may be still more (Economically 

 effefted, and, in other respe&s, with less injury t& the 

 soil, by half burning the clay in clamps or in kilns. 

 A preference can only be given in situations where 

 fuel can at a cheap rate be procured for this purpose^ 



SOILS, 



