340 
On the Advantage of 
Length of each half of the bridge . . - 10 feet. 
Width of ditto . , . . . . 4^ 
Length of stay-brace which regulates the bridge according to 
the height of the fence . . . . 13 „ 
In forming a fence to divide a plantation from pasture, the best 
plan to be pursued is to make a small ditch on the side next the 
plantation about 3 feet wide and 2 feet deep. The sods to be 
taken out of this ditch are to be placed carefully with their grass 
sides outwards, in order to form a bank next the pasture. They 
are to be so placed as to leave a small space in the middle of the 
bank, to be filled up with the remainder of the earth to be taken 
out in forming the ditch. A fence of posts, to be placed 5 to 7 
feet from each other, with triple rails, both p*osts and rails being 
of fir, is then to be placed on the bank. The quick should be 
planted perpendicularly on the edge of the ditch next the planta- 
tion. A double row of sets planted about 5 inches from each 
other in this form answers best. The young fence, as 
to clipping, &c., is to be managed as before described. In about 
four years the bank may be thrown into the ditch, and all will 
then remain as level as before. This mode of fencing is shown 
in fig. 6. A dead thorn fence will of course answer the same 
Fig. G. 
If 
i 
purpose as the posts and rails in protecting the young quick, but 
it would have to be renewed at the end of the second year, and is 
not always to be procured. 
In taking away the banks which have been raised in forming 
fences, where the soil is poor, a dressing of rotten manure (flagged 
over with grass sods, wliere the fence is next a road), adds much 
to the growth and security of the roots; and where failures have 
