As to the Difference of the Quantity of artificial Pasture made by _Dung_ without Tillage, and that made by Tillage without _Dung_; the latter is many Times greater, of which I had the following Proof. An unplow’d Land, wherein a Dunghil had lain for two or three Years, and being taken away, was planted with _Turneps_; at the same time a till’d Land, contiguous thereto, was drill’d with _Turneps_, and Horse-ho’d; the other, being Hand-ho’d, prospered best at the first; but at last did not amount to the Fifth Part of the Till’d and Horse-ho’d, in Bigness, nor in Crop. The Benefit of the Dung and Hand-hoe was so inconsiderable, in comparison of the Plough and Hoe-plough; the little Quantity of artificial Pasture raised to the other, was only near the Surface, and did not reach deep enough to maintain the _Turneps_, till they arrived at the Fifth Part of the Growth of those, whose artificial Pasture reach’d to the Bottom of the Staple of the Land. A like Proof is; that several Lands of _Turneps_, drill’d on the Level, at three Foot Rows, plow’d, and doubly dung’d, and also Horse-ho’d, did not produce near so good a Crop of _Turneps_, as Six Foot Ridges adjoining, Horse-ho’d, tho’ no Dung had been laid thereon for many Years: There was no other Difference, than that the three Foot Rows did not admit the Hoe-plough to raise half the artificial Pasture, as the Six Foot Rows did. The Dung plow’d into the narrow Intervals, before drilling, could operate no further, with any great Effect, than the Hoe-plough could turn it up, and help in its Pulveration. _Dung_, without Tillage, can do very little; with some Tillage doth something; with much Tillage pulverizes the Soil in less Time, than Tillage alone can do; but the Tillage alone, with more Time, can pulverize as well: This the Experiments of _artificially_ pulverizing of the poorest Land, as they are related by Mr. _Evelyn_, fully prove. And these Experiments are the more to be depended on, as they are made both in _England_ and _Holland_ by Persons of known Integrity. This Truth is also further confirmed by those Authors who have found, that High-way Dust alone is a Manure preferable to Dung: And all these Pulverations being made by Attrition or Contusion, why should not our Instruments of Pulveration, in Time, reduce a sufficient Part of the Staple of a dry friable Soil, to a Dust equal to that of a Highway? The common Proportion of Dung used in the Field pulverizes only a small Part of the Staple: but how long a time may be required for our Instruments to pulverize an equal Part, it depending much upon the Weather, and the Degree of Friability of the Soil, is uncertain.