Chap. IX. of Gardening. 1^7 



if the Pipes are too fmall^ or furnilh too many Bafons, with- 

 out having their due Proportion^ they will form nothing but? 

 a few feeble Spouts, and poorly fupplied^ befides thatthefe 

 Pipes are fubjed to be eafily choak'd up, and to burft, becaufe 

 the Wind is fo confined in them, that it can fcarcely get out. 



T o remedy all this, I lhall fliew you the moft juft Pro- 

 portion that ought to be given to Conduit-Pipes, with rc- 

 Iped to their Water-Spouts. To make a Spout play four or 

 five Twelfths of an Inch thick, that is to lay, whofe Quill 

 or Ferril is bored to that Diameter, which throws out an 

 Inch and one feventh in Circumference, the Pipe fliould be 

 an Inch and a half in Diameter i for a Spout of fix or feven 

 Twelfths, the Pipe ought to be two Inches j for one of eight 

 or nine Twelfths of an Inch, the Pipe fliould be three In- 

 ches ; and for a large Spout of an Inch Bore, the Pipe 

 fliould be four Inches Diameter. To play a Spout ftillbig- 

 ' ger, as oF an Inch and quarter, or better, or what we call 

 a Sheaf of Water^ there mufl; be a large Pipe of fix Inches 

 Diameter, I fliall forbear faying any thing of Pipes that 

 exceed fix Inches, asthofemade for the King's Works, whicb > 

 come up to a Foot or 1 8 Inches Diameter, and coft fuch vaft : 

 Sums, that they feem to me above the Reach of theimQft .weal- 

 tiiy private Gentleman. 



It may be taken for a general Ruk, that the Bore of the 

 Qpill ought to be four Times lefs than the Bore or Diameter 

 of the Conduit-Pipe i that is, they ftiould be in a Quadru- 

 ple Proportion, that the Column of Water may be propor- ' Manotte'^ 

 tionable, and that the Quicknefs of the Motion in the Pipes '^^^^^jfi 

 may be equal ; befides which^, there is too great a Fridlion watlrfpL 5^ 

 and Wear in fmall Pipes^ when the Quill is too big; i^^^^HOc-. 

 an^l in the Bore of fmall Quills^ when the. Pipes are toQ 

 large. 



There are divers Sorts of Quills which throw the Wa-^ 

 ter into Sheafs, Showers, Suns^ Fans, and a great many 

 other Forms, asyoupleafe; but the moft common are made 

 like a Cone, and have but one Hole for the Water to ifilie 

 at 1 Thefe are the beft too, not being fo fubjed to ftop, as 

 the flat ones^ which are pierced with many Holes or Slits 



made _ 



