6. There are natural Transformations by progression to perfection, as is manifest in Insects, which at the first to our view do appear to be Worms, Maggots, Creepers, or Caterpillers, and yet afterwards do become several sorts of winged Creatures, as Butterflies of many and various kinds, Flies, and the like; as that Creature, which here in the North Fishers do call a _May_-Fly, is first but a little Creeper inclosed in an Hull, as of pieces of straws, or the like: and so that which they call a Cod-bait, is like a yellow Maggot with a black head inclosed in a sandy crustaceous Husk, and yet towards the middle of _August_, or the beginning of _September_ becometh a fine yellowish Fly, which the Fishers use to bait withal, and these are but gradual progressions towards the perfection of the Animalcle, as the learned Author _Johannes Swammerdanus_ hath declared in these words, as we find it laid down in the Philosophical Transactions: “First it lays down the ground of all natural changes in Insects; declaring, that by the word Change, is nothing else to be understood but a gradual and natural evolution and growth of the parts, not any Metamorphosis or Transformation of them, and a great deal more of notable observations concerning the most sorts of Insects, as may be seen in the piece quoted in the Margent.” So likewise there are very many strange transformations wrought by petrifactions both of Vegetables and Animals, or their parts, as may be seen by the Writings of many learned Authors, especially those noted in the Margent, to whom we refer the curious Inquirer. These being natural Transfigurations (for so they may be properly called) we cannot rationally suppose that any man of judgment will imagine, that any such can be produced by Devils or Witches, because they are brought forth by natural Principles and Agents, which Devils or Witches cannot overrule, alter, nor hinder, else the whole and certain course that the Creator hath set in the order of the production and generation of natural things, might be suspended, which is not possible to be performed without an omnipotent Power, which the Devils and Witches have not. Besides the most of these require a suitable time for their production and perfection, which must only be performed by the internal operation of Nature, or by Art accelerating the works of Nature, which Devils and Witches cannot bring to pass. [Sidenote: Exod. 4. 6, 7.] [Sidenote: 2 King. 5. 27.] [Sidenote: 1 Sam. 21. 13.] [Sidenote: _De Monst._ _l._ 24. _c._ 18. _p._ 565.]