_Note_, Whereas I often mention the Wheat of this Field to be without Dung or Fallow, it must be understood of that Part of the Field wherein my _Weighings_ and other Trials were made: because there was a small Part once fallowed Eight or Nine Years ago, and a little Dung laid on another Part about the last _Michaelmas_, after the Crop of Oats was taken off. But this being a Year in which Dung is observed to have little or no Effect on _sown_ Wheat (my Dung being weak and laid thin), ’tis the same here; for those Rows which are in the dunged Part, can hardly be distinguished from the rest of the Rows which had not been dunged: And yet the Ends of the Rows which were cleansed of Weeds, are very distinguishable by the Colour of the Wheat, though some are the Third, and some the Fourth Crop since the Difference was made; and the _whole_ Rows managed alike every Year, from that time to this; so that _here_ Un-exhaustion is more effectual than Dung. This is certain, that neither Dung nor Fallow hath been near the Part wherein my Experiments were made. I answer, that they judge right, if the Produce of the whole Field be not of equal Goodness; but if it be not, it must be because one Part of the Field is richer, or differently managed from the other Part: For the same Causes that produce Twenty Ounces of clean Wheat upon one Yard, must produce the same Quantity upon every Yard, of a Million of Acres. When the Crop of half a Field is spoiled by Sheep, not hoed at all, or improperly, it would be ridiculous to compute the whole Field together for an Experiment: We might indeed weigh the poorest, to prove the Difference of the one from the other, to try (as they sometimes seem to do) how poor a Crop we can raise; but my Design was, to try how good a Crop I could raise with a Tenth Part of the common Expence. And I have often weighed the Produce of the same Quantity of Ground[145], of all Sorts of sown Wheat, both the best and the worst; but never have found any of the sown equal to the best of my drilled. Indeed we have none of the richest Land[146] in our Country within my Reach, that being not above One Mile. [145] I allow Two square Yards of their Crops to One Yard in Length of my Treble Row. [146] I am sorry that this Farm, whereon I have practised Horse-hoeing, being situate on an Hill, that consists of Chalk on one Side, and Heath ground on the other, has been usually noted for the poorest and shallowest Soil in the Neighbourhood.