Telescope, and as soon as he saw the Flags upon any of the Steeples at a Distance move from the Directions which they stood in when he first ascended the Steeple, he might be certain of a fresh Gale being come, and that it had just then reached that Steeple. Upon seeing this, all that he would have to do would be, to look at his Watch and by that Means he would know how fast the Gale of Wind had travelled, by observing how many Miles it had gone in such a Time. For by observing the Flag on the Steeple at a Distance, he might know when it had reached that Place, and by the Flag upon the Steeple where the Observer himself stood, he might see when it reached him, and by his Watch he might know how long it had been coming. * * * * * XV. _That there is now, or ever was, such a Science as Astrology._ Reader, when thou dost peruse this Book, I would have thee sensible of the intrinsic Value of Truth; one single Page of this inestimable Commodity, is worth a Thousand Volumes of Lies. I do not intend to impose upon thee, and lead thee astray, and laugh at thee afterwards; even as the Egyptian Priests of old did deceive their Flock, and at the same Time did laugh at them, for worshiping the monstrous Idols, which were the Compositions of their own Craft. Thou wouldest hardly believe that these Idolaters were so grossly imposed upon, as to be induced to worship Garlick and Onions; and yet, we have Accounts, that if the Priests of those Times did fix their Eyes upon a good Crop of those Vegetables, they could very easily rank them amongst the Number of their Gods; and, by that Means, render them unlawful to be handled by any one, except themselves. What might be their Intent, in such a Case, we will not presume to determine, but leave it to thy own superior Judgment. Indeed, thou mayest think thyself happy, in being a Native of a Country, where the exact Boundary is fixed to every one's Property; and where, though when thou dost endeavour to defend thy Right, thou wilt find some who are ready to go Halves with thee, yet, thou mayest in Time hinder thy Adversary from enjoying what is thy Due.