* DARWIN 



Sudden and violent fhowers extremely 

 detrimental, from their wafhing down the 

 ditfufable and foluble parts of the foil into 

 muddy rivers. It is obferved, that every 

 fuch ihower conveys through thofe chan- 

 nels into the fea, many thoufand pounds- 

 worth of fertilizing matter, thus confider- 

 ably diminilhing the food of terreflrial 

 animals, however it may add to the fuf- 

 tenance of the aqueous tribes. Great at- 

 tention is neceffary to counteract the mif- 

 chief of thefe impetuous and impelling 



rains, equally noxious to the dry foil and 





 fituation, as to thofe which are irriguous. 



To fuch end we are informed that all hills 

 fhould be ploughed horizontally, and not 

 in afcending and defcending furrows ; alfb, 

 that Hoping fields of pafture-land might be 

 laid in tranfverfe ridges and deprefiions, 

 Thus the water of thefe partial inundations 

 would remain fome hours in the horizon- 

 tal furrows of the ploughed hills, and in 



the 



