_ ' 



ct 



I 



udth 



■-^^ b 



edi 



lit 





per. 



e 



bott 



om of til 



'^^^^nt,th 



e 



e 



-Ce no w 



ater 



to bore oihe 



r 



::ii 



"•^terrlle 



s 



ere 



:red. Wh 

 -ter received 



wa 



; for the 

 ^elo'v the wet 



1 



rife up from 

 irou^h the in- 



fo minyfeet 

 draining thofe 



jr by a ditch. 



ucce 



fs by Mr. 



Mr. Antler- 



his Effays oa 



of a ditch 

 the furface 



;tom 



;nce 



ever 



fincc 



^ fes vvi 



tb gf^^' 



it IS 



liable to 



to 







bftri^ 



ait5 



rc 



reui 



mov^ 



dfor 



1 



ark^ 



111' 



(lapcf 



,-■ 



Sect. XL i. 7 



AND WATERING. 



263 



ftance is publiflied in a late volume of the Phil. Ti anf. by Mr.W 



liamy, who funk 



well 2q6 feet deep 



d four feet wide ; and, on 



then borin^ a few feet lower with a five-inch borer, fo much fand 



fe with a violent dream 



f 



fill up the whole w 



was repeatedly cleared away by buckets in its fluid (late, and 



ft the w 



furface to the amount of forty-fix gal 



Ion 



The manner of making thefe ditches narrower, as they defcend 

 by fpades of an adapted breadth ; and of making the loweft pa 



any other part, io that the fhouldcrs or edges of 



rower 



than 



fupport ft 



or 



fa 



o 



to cover 



t may 

 whole at a fmall expence 



ithout obftru6Hng the currents of water, are obvious to the work 



men 



I 



many fituations hollow brick 



dge-tiles, or old pieces- 



f plafter-floors, may be worth the aditional expence 



f provid 



a 



m 



/ 



There may neverthelefs be found fituations, where the firft ftra 

 if earth may be too thick to be eafily penetrated ; or where th 

 • condenfed from the atmofphere on the fummits of the hill 



y Aide bet 



the fecond and third, or between th 



third 



d 



fourth ftratn, which form the fides of thofe hills, owing to a defic 



cy of fo many of the ftrata at the fummits of them ; ai 



it may lie too deep to be eafily arrefted by a d;tch, or by boring ; and 



d hence th 



yet by its being d 



a 



ed up by the materials, which form the level 



th 



ey, may rife up through thofe mater 



to th 



face, and form boggy or morafly ground. 



In thefe fituations the common unlkilful method of draining may 

 be ufefuUy employed ; which confifts in cutting many ditches four 

 or fix feet deep acrofs the bog or morafs ; .and covering them, fo that 



the water may h 



may tb 



no 



bftru£tion in pa(fing along them; which 



as 



fes from below, be in part coUecled and 



yed 



though lefs advantageoufly than where the fprings can be 



pted 



Another 



