An humble address to the Right Honourable the Lords, and the rest of the Honourable commissioners, appointed by Act of Parliament to judge of all performances relating to the longitude wherein it is demonstrated from Mr. Flamsteed's observations, that by the late incomparable Sir Isaac Newton's theory of the moon, as it is now freed from some errors of the press, the longitude may be found by land or sea, either night or day, when the moon is visible, and in proper weather, within very few miles of certainty