has its colours immediately in a place, but in the air mediately, and that it is of the nature of Light._ This is indeed a great mystery to my reason; for I cannot conceive, as I said before, a place without a body, nor how Light and Colours can be bodiless: But as for Rainbows, I have observed, when as water hath been blown up into the air into bubles, that by the reflexion of light on the watery bubles, they have had the like colours of the Rainbow; and I have heard, that there hath been often seen at the rising and setting of the Sun, Clouds of divers colours; Wherefore I cannot be perswaded to believe that a Rainbow should not have a natural cause, and consequently be a natural effect; For that God has made it a sign of the Covenant between him and mortal men, is no proof, that it is not a natural effect; Neither can I believe that it has not been before the Flood, and before it was made a sign by God, as your _Author_ imagines; for though it was no sign before the Flood, yet it may nevertheless have had its being and existence before the Flood. Moreover, as for Thunder and Lightning, your _Authors_ opinion is; _That although they may have concurring natural Causes, yet the mover of them is an Incorporeal Spirit, which is the Devil; who having obtained the Principality of this world, that he may be a certain executer of the judgments of the chief Monarch, and so the Umpire and Commissioner of Lightning and Thunder, stirs up a monstrous and sudden Blas in the Air, yet under Covenanted Conditions; for unless his power were bridled by divine Goodness, he would shake the Earth with one stroke so, as to destroy all mortal men: and thus the cracking noise or voice of Thunder is nothing but a spiritual Blas of the Evil Spirit._ I will not deny, _Madam_, that Thunder and Lightning do argue the Power of the most Glorious God, for so do all the rest of the Creatures; but that this is the onely and immediate cause, which your _Author_ assigns of Thunder and Lightning, I cannot believe; for surely, in my opinion, Thunder and Lightning are as much natural effects as other Creatures in Nature; and are not the Devils Blas, for I think they may be made without the help of the Devil; nay, I believe, he may be as much affraid of Thunder, as those Creatures that live on Earth. But what the causes are, and how Thunder and Lightning are made, I have elsewhere declared more at large, especially in my _Philosophical Opinions._ Again your _Author_ speaking[4] of the _Trembling of the Earth, thinks it is nothing else but the Judgment of God for the sins of Impenitent men._ For my part, _Madam_, I can say little to it, either concerning the divine, or the natural cause of Earthquakes: As for the divine and supernatural Cause, which your _Author_ gives, if it was so, then I wonder much, why God should command Earth-quakes in some parts of the World more frequent then in others. As for example; we here in these parts have very seldom