Sett. I. Agriculture and Vegetation. 107 



are fome who doubt of its good effects. 

 Perhaps in a fmaller quantity, its effects 

 may be more beneficial ; efpecially if it 

 contains the bittern, which is a competi- 

 tion of the vitriolic acid, and an abforbent 

 bafe*, and a bituminous oil, both of which 

 muft be affiftants of vegetation. The fait 

 which I ufed being table-falt, was in a great 

 meafure freed from thefe. 



Cor. 9. The acid of nitre feems to have 

 retarded vegetation at firft; perhaps from 

 its being not fufficiently united to the ab- 

 forbent particles of the foil. But at laft it 

 feems to have promoted the growth of the 

 plants coniiderably. 



Cor. 10. Spirit of hartmorn, which is a 

 volatile fait diluted with water, feems to 

 have poifoned the young plants. 



Cor. n. Flowers of brimftone, i oz. to 

 6 Ib. of earth, appears to have promoted 

 vegetation greatly at firft 5 but in a month's 



time 



