C 87 3 
more manure must be applied in an equal 
improvement of it. 
If your Lordship takes the trouble of 
comparing the constru6lion of your double- 
furrow ploughs with the single ones of Nor- 
folk, as well as the work respe6fively exe- 
cuted by them, you will lind, that the lat- 
ter performs all the intentions before de- 
scribed, in the most perfe6l manner; that 
its a61:ion is steadier in the ground ; that its 
coulter stands more prominent, with a greater 
proportionate length before the point of the 
share, to cut and clear away obstru6fions ; 
that its bottom never inclines more to one 
side than to the other, or produces inequality 
of depth ; that it is proportionately shorter 
in the body, and consequently passes through 
the soil with greater ease ; that in stirring 
fallow land the Wing of the share is always 
as wide as the extremity or hind part of its 
bottom, in order to cut the roots of all weeds 
it may meet in its progress, an intention for 
which it is superior to all other ploughs, 
steadily preserving a constant horizontal di- 
V 
