Lastly, We shall not need to conceive God made the Rain-bow at this time, if we consider that in its created and predisposed nature, it was more proper for this signification then any other Meteor or celestial appearancy whatsoever. Thunder and lightning had too much terrour to have been tokens of mercy; Comets or blazing Stars appear too seldom to put us in mind of a Covenant to be remembred often: and might rather signifie the world should be once destroyed by fire, then never again by water. The Galaxia or milky Circle had been more probable; for (beside that unto the latitude of thirty, it becomes their Horizon twice in four and twenty hours, and unto such as live under the Æquator, in that space the whole Circle appeareth) part thereof is visible unto any situation; but being only discoverable in the night, and when the ayr is clear, it becomes of unfrequent and comfortless signification. A fixed Star had not been visible unto all the Globe, and so of too narrow a signality in a Covenant concerning all. But Rain-bows are seen unto all the world, and every position of sphere. Unto our own elevation they may appear in the morning, while the Sun hath attained about forty five degrees above the Horizon (which is conceived the largest semi-diameter of any Iris) and so in the afternoon when it hath declined unto that altitude again; which height the Sun not attaining in winter, rain-bows may happen with us at noon or any time. Unto a right position of sphere they may appear three hours after the rising of the Sun, and three before its setting; for the Sun ascending fifteen degrees an hour, in three attaineth forty five of altitude. Even unto a parallel sphere, and such as live under the pole, for half a year some segments may appear at any time and under any quarter, the Sun not setting, but walking round about them. [Sidenote: _The natural signification of the rain-bow._]