On ThoroH(jli-Di(thiin(j. 
27 
or three-quarters of an acre of land: the inaiii drain ojiens into 
the ditch at a sj)ot called the " eye." We do not interpose one 
large drain between the main drains and the ditch. I will detail 
as minutely as I can the successive steps in our progress, and 
I wish I was sufTiciently master of my pencil to be able to repre- 
sent them in that way, for I think I could then convey a clearer 
impression of our uuHhod than comes within the power of a written 
description. 
1st. We draw the tributaries parallel to one another by means 
of a common plough going two bouts to each drainj thus open- 
ing a furrow 18 inches wide, and 5 inches deep : 
The following is a section of this stage of ihe drain : 
By the first bout b is turned up to c on each side ; by the 
second bout a is turned up to b on each side. Thus leaving a 
furrow (a a) in depth 5 inches and 18 wide. Then we draw the 
main drains by the same plough, being guided in the direction of 
them by circumstances, such as shape of the field, fall of the 
water in the ditches, »S:c. 
Then a large deep-breasted plough, kept for the purpose in some 
districts, going once down the furrow opened by the previous 
operations, turns out another furrow about 10 inches wide by 5 
