[67] I have now a Piece of Wheat drill’d early the last Autumn upon an Hill, fallowed and well pulveriz’d: Part of it was drill’d with Wheat in double Rows upon the Level Nine Years ago, Horse-ho’d, and the Partitions thoroughly Hand-ho’d to cleanse out the Poppies, of which the Land was very full; the other Part of this Piece was never drilled till this Year: The whole Piece hath not been before this Winter Horse-ho’d. Now the Partitions of the Part that was never any Way Ho’d, are so stock’d with Poppies matted together, that unless they are taken out early in the Spring, they will totally devour the Rows of Wheat; but in the other Part that was ho’d so long since, there are now very few Poppies to be seen. Both these Parts have had several sown Crops of Barley together since, and have lain with _St. Foin_ these last Five or Six Years. [68] And except also such Weeds, whose Seed is carried by Birds, which is the most common Manner of transporting the Seeds of Vegetables from Field to Field, against the Content of the Owner: For Birds, whether great or small, do not care to eat their Prey where they take it, but generally chuse some open Place for that Purpose. ’Tis, I am persuaded, by this Means chiefly, that a Vineyard or Field, made ever so clean from Grass, will, in lying untilled a few Years, be replenished with a Turf of that neighbouring Species of Grass, which best suits the Heat and Moisture of the Soil: Yet there are some Species of Seeds that Birds (at least such as frequent this Place) do not affect; else the Burrage-weed (mentioned in _p._ 77.) would have appeared again in my Field in some of the many Years since the Hoeing has extirpated it there; for it grows plentifully in the unplowed Way adjoining thereto. The Seeds of some Weeds may be suspected to come in the Air; as the Seed of the Grass that grew in the _Cheapside_, in the Time of the Plague; but it might come from Seeds in the Dirt, brought thither by the Feet of People and Cattle, and by the Wheels of Coaches, Carts carrying Hay: Or otherwise continual Treading might keep it from Growing; and when the Treading ceased, ’tis no Wonder the Seeds should furnish the Streets with Grass. And I have observ’d on the Floors, two Stories high, of a lone, ruinous, uninhabited House, being long uncover’d, a sort of Herb growing very thick; I think it was _Pimpernel_, and believe that its Seeds did not come thither in the Air; but in the Sand which was mix’d with the Mortar that had fallen from the Cielings; and ’tis like there were few Seeds at first: Yet, these, ripening for several Years, shed their Seeds annually, until the Floors became all over very thick planted: Besides, Hay-seeds and Pimpernel are too heavy to be carry’d far by the Air. CHAP. VIII. _Of_ TURNEPS. As far as I can be inform’d, ’tis but of late Years that Turneps have been introduc’d as an Improvement in the Field.