Different Sorts of Seeds come up at different Depths; some at six Inches, or more; some at not more than half an Inch: The Way to know for certain the Depth any Sort will come up at is, to make Gauges in this Manner: Saw off 12 Sticks of about 3 Inches Diameter: Bore a Hole in the End of each Stick, and drive into it a taper Peg; let the first Peg be half an Inch long, the next an Inch, and so on; every Peg to be half an Inch longer than the former, till the last Peg be six Inches long; then in that sort of Ground where you intend to plant, make a Row of Twenty Holes with the half-Inch Gauge; put therein Twenty good Seeds; cover them up, and stick the Gauge at the End of that Row; then do the like with all the other Eleven Gauges: This will determine the Depth, at which the most Seeds will come up[46]. [46] In the common way of Sowing tis hard to know the proper Depth, because some Seeds lying deep, and others shallow, it is not easy to discover the Depth of those that are buried: But I have found in drilling of black Oats, that when the Drill-Plough was set a little deeper for Trial, very few came up: Therefore ’tis proper for the Driller to use the Gauges for all Sorts of Seeds; for, if he drills them too deep, he may lose his Crop; or, if too shallow, in dry Weather, he may injure it, especially in Summer Seeds; but for those planted against Winter, there is the most Damage by planting too deep. When the Depth is known, wherein the Seed is sure to come up, we may easily discover, whether the Seed be good or not, by observing how many will fail: For in some Sorts of Seeds the Goodness cannot be known by the Eye; and there has been often great Loss by bad Seed, as well as by burying good Seed; both which Misfortunes might be prevented by this little Trouble; besides ’tis not convenient to plant some sorts of Seed at the utmost Depth they will come up at; for it may be so deep, as that the Wet may rot or chill the first Root, as in Wheat in moist Land. The Nature of the Land, the Manner how it is laid, either flat, or in Ridges, and the Season of Planting, with the Experience of the Planter, acquired by such Trials, must determine the proper Depths for different Sorts of Seeds.