IN E RODUVCT- TONE 5% neglected by thoſe perſons who have turned their attention to machines, as 2 rude tool, unworthy of their atten- tion. Such perſons imagined that any ching could do for the clumſy operation of turning up the ground, and that there could be no nicety in a work which was ſucceßsfully performed by the ignorant peaſants. Other perſons have imagined, that it is impoſlible to explain the principles by which. the plough performs its work. If this be true, we muſt ad at random in making this important inſtrument, without knowing whether we are right: or wrong, except by the event; and if che plough ſhould not anſwer our pur- poſe, our attempts to amend it muſt be without rule; andas liable to error as

Deore, Dotz