[ i88 ] 



C H A P. IV. 



Of the Manures moji advantageoujly applicable to the different 

 Soils^ and of the Caifes of their beneficial EffeSl in each In- 

 fiance. 



The folution of the firft part of this problem can only be de- 

 rived from the general pradice of the moft fkilful farmers, 

 correded however and improved by the more precife determina- 

 tions and reftridions of theory. That of the fecond I fhall endea- 

 vour to deduce folely from the theory eftablifhed in the two laft 

 chapters. The whole is grounded on this fimple propofition, 

 that manures are applied to fupply either the defective ingredients of 

 a foil, or improve its texture or correB its vices. 



I NOW proceed to confider each foil in particular. 



Of Clay€j SoiUp;^ fnoft boott 



i ;j£H :r :■; ■■;;, ' ' 



The beft" manure for clayey foils is marie ; in this all the 



books of agriculture are unanimousf ; and of the different forts 



of marie that which is moft calcareous is beft ; the filiceous next 



beft ; limeftone gravel beft of all ;. and argillaceous marie leaft 



advantageous J. , ; -r, |[„. t-,. ^i, -.^rf. ... ^.^ ,.-> 



Clatet 



■}• 4th Youog's Eaftern Tour, 404. iftjBody of Agriculture, 104, 108. J Ibid 108. 



