On the Drainage of Land. 
327 
Fig. 2 
thus. 
front 1 
view 
thus. 
handle, I the whole forming, 
thus, I as near as I can 
draw, thus, 
Fig. 1 Is the main part, which '\% \\ inch wide and 
\ inch thick, tapering down like a common chisel at 
bottom ; the wing A is a thin piece of steel, 6 inches long and 
deep, joined on at bottom at right angles on the right-hand 
side ; the tread B, fig. 2, must be fixed on the left-hand side, 
14 inches from bottom, and stand out 3 inches long — an old 
short-grained prong — a rammer thus, 
made out of a 
slab of board, 3 inches thick at bottom, a lever, chain, and block, 
the latter 6 inches deep, 2^ inches thick at top and 2 at bottom, 
six joints a foot long each, joined together with two plates of 
in 
hoop- iron to each joint, let in with a saw cut across the blocks, and 
fastened with pins drawn through the blocks and irons, which will 
allow of their turning in the drains, thus, — 
The blocks and lever, showing the iron plates and pins, thus, 
moDi 
The end view thus, ^ with the hollows in the sides, in order 
to allow the water to pass while the drain is made. 
On grass-land you first mark out with the spade where the drains 
are to be. Take the turf off 6 inches deep and place that on one 
side, then take a spit out a foot deep, with the hollow spade, and 
place that on the other, taking care to have it rather narrower at 
bottom, then take the bottom bit out a foot deeper with the tool 
