( 19 ) 



Jnland fubjed to partial overflowings, furface* 

 draining will be found ufeful, as when the wa* 

 cer fubfides, the remains will thereby find a 

 quick vent. 



In all the flooded land I have feen, any hil- 

 lock or rifing ground was always the nnofl fer- 

 tile 5 the reafon of which I take to be, that 

 thence the water fpcedily runs off. In holes 

 and low places the greateft quantity by far of 

 the fediment and flime is depoficed : and this 

 fcdiment and flime are fuppofcd to be the w^vy 

 quintefTence of manure : although we find 

 thofe parts on which they have been depofited 

 in the greateft abundance to be the moft fteril 

 in the meadow. 



In refped to commons ; the irregularity in 

 flocking, and the want of divifion-fences, 

 make furface-draining exceedingly defirable. 

 For ditches here might ferve a double purpofe, 

 that of fences and drains : they might divide 

 land of different Qualities -, as it often happens 

 that fome is fit for palture, and other parts pro- 

 per for the plough. 



Proper draining may fave fome acres in a 

 large field newly inciofed. In an arable field> 



how 



