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knew this by small down placed upon ye top of a small stick perpendicular, distant two or three feet from ye ball, which would be moved as to be elevated towards it; but that wind was very small.  Whence it may be judged] that ye air towards ye poles is moved against ye Earth, and may be extended into 50 degrees, and them immediately after that cause is ceased and before that ye reflux of ye air elevated by ye moon returns towards ye poles, ye motion of ye earth from west to east may make appear an east wind alone wch ordinarily lasts not above a day or two, for ye moon returning to its perigeum, reciprocally ye air towards ye poles and makes in ye beginning a sough east wind by ye combination of ye motion of ye air towards ye poles and of that wch comes from ye east, The south afterwards reigns till that ye great motion of ye west winds wch reign to ye 40th degree as hath been said and wch may sometimes be extended to 8 or ten degrees beyond, advance a little towards ye northern climates and being mixed with ye south winds, make ye south west; and ye reflux of ye south being ceased, ye west wind alone may reign till that ye reflux of ye air, if ye south wind had pushed towards ye north, joyns to that wch is drawn by ye following elevation of ye moon towards her apogeum, and by ye small motion whereof hath been spoken, makes ye north and northeast as at ye new moon.  this period and change of winds happens twice at every lunar month. I have observed it for many years, and althô there happens some irregularities by ye combination of particular causes; I have almost always found that ye north east reigned at ye new and full moons and ye south and west at ye quarters: but one ought to observe, that as in rivers where ye flux of ye sea is raised high, ye reflux begins to be made towards their mouths whilst ye flux yet mounts in many places a great way off, so ye north or ye northeast blow not at Paris in ye same time that ye moon is at her apogeum, and that is not but after she is much reapproached ye Earth.  It is moreover easily  to judge that when ye moon is towards ye tropic of Capricorn in its greatest south latitude ye air wch it then elevates or wch it thrughs back again, takes a greater time to make its motion sensible towards ye north countrys, than when it is nearest ye north pole, and also that ye motion may be too feeble to extend unto ye 50 degree of north latitude.  I have observed sometimes at Paris that ye wind having been northeast 7 or 8 days together and that of ye south winds ought in their order to blow, ye north east yet reigned at ye bottom; but there was some clouds highly elevated wch were at ye same time driven by ye south, but very feebly, this made me judge that towards ye 40 degrees of latitude ye south and southwest might be there great enough to reign alone.  It ought to happen also that ye inequal elevations of ye moon should make considerable in respect of ye winds, both as to the size strength and as to ye days where ye ought reign.  It is also necessary that there happens much irregularity in ye winds by ye mixture of particular causes whereof hath been spoken; but ye winds ought to be less irregular in ye places where there is few mountains, as in ye Ile of France and in Champayne than in places fuller of mountains.

  The motion of ye winds is never [[strikethrough]] ?universall [[/strikethrough]] uniform, no more than ye current of rivers, and it makes in ye same matter waves and turnings wch are called whirlewinds that have different swiftness.  It is observed in great tempests that in ye space of ye 4th part of league, where for ye most part ye trees are beaten down, there is intervals where there is none broken, because that ye wind was there less violent.  It is observed also that all ye winds  blow by puffs and intervals this is known by ye sound of bells wch one heard diminished or augmented in small intervals of time.  Here is ye causes.  Let us suppose that a great wind of a great compass incounters towards G with houses and small eminences wch reflect it in some places, and make in parallel waves as A B C D it is evident that ye spring wch they convey by their encounter in B will make ye stream B D go swifter, and ye wch is in ye direction of G B will afterwards much more feebly  chec ye storm in B.  Ye same ought to happen in 

^[[drawing of wind currents with points A B C D & G labelled]]

Transcription Notes:
Upper case "D" looks similar to upper case "B." http://echo.mpiwg-berlin.mpg.de/ECHOdocuView?url=/permanent/library/QERNH1MN/pageimg&start=11&mode=imagepath&pn=94&ww=0.1925&wh=0.16&wx=0.6269&wy=0.0391