THE SCOTS GARDENER 



all of iron, and runs in a shiers of the same, fastened 

 perpendicularly under the middle of the fore-breast, 

 with a turning pin of iron : the other two wheels 

 are common, but if they have an iron axis, the better. 

 To bring in water in pipes to your houses, courts, 

 gardens, pondes, parks, &c. consider on the level ; 

 for as the place into which you convey it must 

 alwayes be lower than the fountain from whence 

 it comes, otherwise it cannot flow thither ; so you 

 must take notice, that no hill in the way of its con- 

 veyance be so high as the fountain it self. You may 

 find the level by placing your instrument at the 

 well or fountain, as is directed in walkes ; and if a 

 hill intercept that sight, plant on the top thereof, 

 that by backsight and foresight you may find the 

 difference, and hence you may know whether you 

 can carry it about the obstruction ; but if the dis- 

 tance be far, you must needs be the more exact. As 

 for the instrument, the cross described in Chap. II. 

 whose sights may be two prospect glasses, may do 

 well enough, whether for one or many stations. Let 

 one stand at the spring-head, another betwixt and 

 the place to which you desire to carry the water, 

 a large distance asunder ; but so as a third man 

 about the middle may see both their marke-boards, 



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