196 



The PraSlice Part 11. 



m 



paffing 



through 



them, as it does in Lead and 



Quality 

 Iron. 



The two Ways of carrying Water^ that we have added 

 to rhofe of the Ancients, are by Pipes of Wood, and of Iron* 

 To make Wooden Pipes, you take great Trees, as Oak, 

 Elm, or Alder, the ftraiteft you can get, and bore Holes 

 through them, of three or four Inches diameter. They are 

 fliarpen'd at one End, and are ferriled and girdled with 

 Iron at the other, which ferves for jointing them one into 

 another, and thefe Joints are coverM over with Pitch. Thefe 

 Sorts of Pipes are good only in Countries that are naturally 

 theWatersof damp and marfiiy, for in dry Ground they quickly rot. 

 Liencourt^zre Water that runs through them is reddifli, and has al- 

 ways fome Tafte of the Wood. 



Iron Pipes are caft in a Mould, and are very much in Ufe 

 at prefent ; there are two Sorts of them, which the Trench 

 diftinguifli d Manchons^ and d Brides^ but the latter only 

 are made ufe of, and are efteemedthe beft. Iron Pipes have 

 all the good Qualities of thofeof Lead, laft longer, and coft 

 but -a f fourth or fifth Part of the Price. They are made 

 even to i8 Inches Diameter each Pipe is three Foot and a 

 half long ; and at both Ends there are Stays, or Ears, which 

 Manhen^ffs. joined and brought clofe together with Nut^ and Screws, 

 rhofsa. and between the Joints are put round Pieces of Leather and 

 Budes are Maftick. In difficult Places, you put Rounds and Half-Cir- 

 cles of Lead ; as alfo where there are Elbows, Cocks, and 

 Suckers, you are obliged to make good the Intervals with 

 Pipes of Lead. 



thsr, roith Lea* 



ther between the ^oinu + this mufl be underflood^ partly mth refpeBtotbe great Suhflavce re- 

 quired in a Leaden-Pipe^ mre than in a Pipe of Iron of the fame I>iamter ^ partly -with refpe[t to the Vif' 



ference of Weight between Lead md h on^ and partly mtb refpe^t to the Price of Leadiniv^ncQ^ where 

 *tis much dearer than in England. 



carried in nO' 

 thing but 

 Wood. 



* the Pipes a 

 Manchons 

 run fix Inches 

 one into the o- 

 ther, and are 

 pointed toge- 

 ther with M.a- 

 ffick and 



faften^d to each 

 other by certain 

 £ars or Staysy 

 T^hich are 

 fcrewed to^e- 



tl:e French 

 Coniuit'Ma* 

 hers call fuch 

 fmall jQts or 

 Piflbtiers, 

 Tiffing^ 

 Streams^ 



'T I s not fufficient that I have fpoken of Refervers, and 

 the different Ways of conveying Water : There is ftill a ma- 

 terial Point behind that muft not be forgot, which is the 

 Proportion and Diameter the Conduits and Pipes ought to 

 have, with refped to the Spouts you would have them caft. 

 'Tis on this the Beauty of your Water-works depends 5 for 



if 



