308 MAY. 



him off from much other land that belongs to h?m r 

 he must buy such fields, or perhaps lose the greatest 

 benefit which would result from his operations. K 

 he cannot buy the fee-simple, can he buy permis- 

 sion to cut through it ? He must know this before 

 he begins. 



5th, Having given due attention to all these 

 circumstances, let him repair with his spirit-level 

 and attendant, to the highest spot where the stream 

 enters his property or farm, where he has the pro- 

 perty on both sides, and where he can erect works 

 across the stream in order to divert the whole, or 

 any part of the water into a new channel ; and let 

 him begin to take the level from the surface of the 

 \vater, supposing it pent to the highest by such 

 works. 



6th, He is to level from that spot following the 

 dead level, and at every three or four hundred 

 yards, staking it out doubly, one stake on the dead 

 level, and another near it, descending from the 

 dead level, so many inches as an allowance to give 

 the water a current: two inches in a mile will move 

 it, but twelve to twenty should be allowed, in order 

 that the current may be sufficient. 



7th, Roads need not be any interruption, as they 

 may be passed in a manner hereafter explained ; but 

 farm-houses, yards, gardens, cottages, &c. may in- 

 tervene ; and if they do, a much greater descent 

 per mile must be allowed, that such interruptions 

 may not be quite suddenly, but gradually provided 

 for ; as the former occasions inconveniences. 



8th, 



