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THE farmer’s manual. 
2. When used upon a stiff soil, it breaks the clods, 
and thus pulverizes that surface which could not be 
done with the harrow. 
3. When used upon stony grounds laid down to 
mowing, it presses the stones into the earth even with 
the surfece, at the same time that it breaks the clods, 
and thus prepares the way for the scythe in a cheap, 
and easy method. 
4. When used upon a light, sandy, or loamy soil, 
at seed-time, it gives permitnence, and consistence 
to the surface, which guards against drought. 
5. When used in the spring, upon such winter 
grains as are exposed to be winter-killed, by the 
heaving of the frosts, it presses the earth to their 
roots and thus secures the crops. 
These and many other advantages are ascribed to 
the roller; hut upon this subject 1 have no expe- 
rience, so far as it goes to break clods and press in 
stones, it will doubtless do well. 
Remarks on the General Principles of Husbandry. 
1. Whatever may be the nature of your soil, and 
situation of your farm, remember, that there is no soil 
so good, but it may be exhausted, and ruined by 
bad tillage, and that there is none so bad, that cannot 
be rendered fertile by good tillap, even barren heath, 
if it can be jiloughed, and swarded. 
2. The true art of husbandry consists, in suffer- 
irig no croj) to grow upon your land, that will so far ex- 
haust your soil, as to lessen the value of your succeed- 
ing crop, whatever profit such a crop may afford you. 
3. To avoid this, suffer no one crof) to grow two 
years successively, upon the same piece of ground, 
cxc'ptiny grass, and buck-wheat, without the fer- 
tilizing aid of rich manures to sujiport the Strength 
of the soil; and even then, a change of crops will 
generally do best, excepting onions, carrots, and 
hemp. 
