that I believe the Microscope might make notable Discoveries towards the knowledge of good Tobacco: For the closer the Composition of the Leaf, the better the Tobacco; and therefore the Planters and Merchants brag of the Substance of their Tobacco; which word, did they always take it in a true Sence, for the Solidness, and not mistake it for the Thickness, it would be more consonant to a true Observation: for as I said of the Pine-wood Tobacco, some of it is thick and not Solid, and differs from the best Tobacco, as Buff does from Tann'd Leather; so that if the Tobacco be sound and not Rotten, you may give a great guess at the goodness of Tobacco, when you weigh the Hogsheads, before you see them: For if an equal care be taken in the packing of them the best Tobacco will weigh the heaviest, and Pack the closest. Now I said, that the Sweet-scented Tobacco most in vogue, which was most fam'd for its Scent, was that that grew on sandy Land; which is true, if you would Smoak it whilst new, or whilst only two or three Years Old; but if you keep the stiff Land Tobacco, which is generally a Tobacco of great Substance five or six Years, it will much excel: For tho' the sandy Land Tobacco abound with a Volatile Nitre at first, yet the stiff Land Tobacco abounds with a greater quantity of Nitre, only that it is lock'd up in its Oyl at first, and requires more time to extricate it self, and become Volatile; but the Pine-wood Land having little of the Nitro-Sulphurious Particles, neither is, nor ever will make any thing of a rich Smoak. Discoursing hereof some days since, to a Gentleman of good Observation, that has been versed with Malting, he assured me, to back this my Supposition, or Hypothesis, he had observed, that Barly that grew on stiff Ground, requir'd more time considerably to Mellow, and come to perfection, than that that grew on light Land. Having proceeded thus far to speak of Tobacco, I shall add one or two things more. The Planters differ in their Judgments about the Time of Planting, or Pitching their Crops: Some are for Pitching their Crops very early, others late, without any distinction of the Nature of the Soils; and 'tis from the different Effects that they find, in that, sometimes early, sometimes the late Planting succeeds: But they have not the Reason to judge of the Cause, to consider the Accidents of the Year, and the Difference of the Soils. In sandy Grounds they need not strive so much for early Planting, the Looseness of the Earth, and the kind natur'd Soil, yielding all that it can, easily and speedily, and Sand retaining the Heat, makes the Plants grow faster. But in stiff Soils, if the Crops be not early pitch'd, so that during the Season of Rains it have got considerable Roots, and shot them some depth, if early Droughts come, it so binds the Land, that the Roots never spread or shoot deeper, or further than the Hill that they are planted in: For they plant them as we do Cabbages, raising Hills to set every