Sect. I. Agriculture and Vegetation. 115 



Cor. 5. The former liquor, with half its 

 quantity of oil of olives added to it, and 

 (halted well together, appears to have en- 

 riched the foil moft, and to have nearly 

 doubled its fertility. 



Cor. 6. None of our admixtures was able 

 to bring the poor light foil to the fame fer- 

 tility with the rich garden mould. And 

 no wonder. There the falts and oils are 

 highly attenuated, duly proportioned, and 

 well mixed, by length of time ; and, con- 

 fequently, fitted to enter the fmall veflels of 

 the roots. Befides, that foil, by the mix- 

 ture of putrefcent matter, is in a conftant 

 ftate of fermentation, becomes eafily pene- 

 trable, and offers a larger field for the roots 

 of plants to feed on. 



A s lime never ads on the foil till it be- 

 comes effete, I was willing to fee its effects 

 when faturated in that flate with the acid 

 of nitre; although experiments feem to 

 I 2 fhow, 



