[CHAP. VIII. Of several sorts of Densities and Rarities, Gravities and Levities.]
There are different sorts of Densities and Rarities, Softness and Hardness, Levities and Gravities: as for example, The density of Earth is not like the density of Stone; nor the density of Stone, like the density of Metal: nor are all the Parts of the Earth dense alike; nor all Stones, nor all Metals; as we may perceive in Clay, Sand, Chalk, and Lime-Grounds. Also, we may perceive difference between Lead, Tynne, Copper, Iron, Silver, and Gold; and between Marble, Alablaster, Walling-Stone, Diamonds, Crystals, and the like: and so much difference there is between one and the same kind, that some particulars of one sort, shall more resemble another kind, than their own: as for example, Gold and Diamonds resemble each other's Nature, more than Lead doth Gold; or Diamonds, Crystal; I say, in their Densities. Also, there is a great difference of the Rarity, Gravity, and Levity of several sorts of Waters, and of several sorts of Air.
[CHAP. IX. Of VEGETABLES.]
Vegetables are of numerous sorts, and every sort of very different Natures: as for example, Some are Reviving Cordials; others, Deadly Poyson; some are Purgers, others are Nourishers: some have Hot Effects, some Cold; some Dry, some Moist; some bear Fruit, some bears no Fruit; some appear all the year Young; others appear but part of the year Young, and part Old; some are many years a producing; others are produced in few hours; some will last many hundred years; others will decay in the compass of few hours: some seem to dye one part of the year, and revive again in another part of the year: some rot and consume in the Earth, after such a time; and will continue in perfection, if parted from the Earth. Others will wither and decay, as soon as parted from the Earth. Some are of a dense Nature, some of a rare Nature; some grow deep into the Earth; others grow high out of the Earth; some will only produce in dry Soyls, some in moist: some will produce only in Water, as we may perceive by some Ponds; others on Houses of Brick or Stone. Also, some grow out of Stone; as, many Stones will have a green Moss: some are produced by sowing their Seed into the Earth; others, by setting their Roots, or Slips, into the Earth: others again, by joyning or engrafting one Plant into another: so that there is much variety of Vegetables, and those of such different Natures, that they are not only different Sorts, but are variety of Effects of one and the same sort; and it requires not only the study of one Human Creature, or many Human Creatures; but, of all the Human Creatures in all Nations and Ages, to know them; which is the reason, that those that have writ of the Natures of Herbs, Flowers, Roots, and Fruits, may be much mistaken. But I, living more constantly in my Study, than in my Garden, shall not venture to treat much of the particular Natures, and Natural Effects of Vegetables.
[CHAP. X. Of the Production of Vegetables.]
Tis no wonder, that some sorts of Vegetables are produced out of Stone or Brick, (as some that will grow on the top of Houses) by reason that Brick is made of Earth, and Stone is generated in the Bowels of the Earth; which shows they are of an Earthly Nature or Substance. Neither is it a wonder that Vegetables will grow upon some sorts of Water, by reason some sorts of Waters may be mixt with some Parts of Earth. But, I have been credibly informed, That a Man whose Legg had been cut, and
a Seed of an Oat being gotten into the Wound by chance, the Oat did sprout out into a green Blade of Grass: which proves, that Vegetables may be produced in several Soyls. But 'tis probable, that though many sorts of Vegetables may sprout, as Barly in Water; yet, they cannot produce any of the off-spring of the same Sort or Kind.
But, my Thoughts are, at this present, in some dispute; as, Whether the Earth is a Part of the Production of Vegetables, as being the Breeder? or, whether the Earth is only Parts of Respiration, and not Parts of Production; and so, rather Breathing-Parts, than Breeding-Parts, as Water to Fishes?