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OW TR PLOUGH

higher raifed, will be more broken, and therefore more apt to fall to the left, unlefs prevented by having lefs{pace.

I thall finith this fubject, by making fome obfervations on the Wheel-plough, which has of late come into ufe, efpecially among thofe who are called improvers: For which reafon it will not be improper to inquire a little into its merits.

The chief, or indeed the only aavantage this kind of plough has over another of a proper form for anfwering the fame ends, is, that the wheels keep the beam conftantly, or very nearly, at the fame height, which caufes the furrow to be uniformly deep; whereby are prevented all the inconvenien- cies ariling from the irregular action of the cattle, and the ignorance or inattention of the ploughman.

It is very plain, that this advantage is gained only on level ground, cleared of ftones and obftruGtions: For, if the furface be in any degree uneven, the wheels coun- teract the very purpofe for which they are employed, and render it impoffible for the ploughman to adapt his management to the

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