6. _Why after very great Storms of Wind, when the _Mercury_ has been very low, it generally rises again very fast?_ This I have frequently observed, and once found it risen an Inch and a half in less than six Hours, after a long continu'd Storm of South-West Wind. This seems to be occasion'd by the sudden Accession of new Air to supply the great Evacuation which such continu'd Storms make thereof, in those places whence they happen (as in the third Remark) and by the Recoile of the Air, after the force ceases that impelled it; and the Reason why the _Mercury_ rises so fast, is because the Air being very much rarify'd beyond its mean density, the Neighbouring Air runs in the more swiftly to bring it to an _Æquilibration_, as we see Water runs the faster for having a great declivity. 7. _Why in more Northerly places the Variations of the _Baroscope_ are greater than in the Southerly?_ The truth of the Matter of Fact is prov'd from Observations made at _Clermont_ and _Paris_, compar'd with others, made at _Stockholm_, as may be seen in the Appendix to Mr. _Pascal_'s Book before-cited. The Reason I conjecture to be, that the more Northerly Parts have usually greater Storms of Wind than the more Southerly, whereby the _Mercury_ should sink lower in that Extream; and then the Northerly Winds bringing the condens'd and ponderous Air from the Neighbourhood of the Pole, and that again being check'd by a Southerly Wind, at no great distance, and so heaped, must of necessity make the _Mercury_ in such case stand higher in the other Extream. 8. And Lastly, _Why near the _Æquinoctial_, as at _Barbadoes_ and St. _Helena_, there is very little or no Variation of the height of the Barometer?_ This Remark, above all others, confirms the Hypothesis of the variable Winds, being the cause of these Variations of the height of the _Mercury_; for in the Places above-named, there is always an easie Gale of Wind blowing nearly upon the same Point, _viz._ E. N. E. at _Barbadoes_, and E. S. E. at St. _Helena_; so that there being no contrary Currents of the Air, to exhaust or accumulate it, the Atmosphere continues much in the same State. However, upon Hurricanes, the most violent of Storms, the _Mercury_ has been observ'd very low, but this is but for once in two or three Years, and it soon recovers its settled state of about 29½ Inches. I doubt not but the same thing is in the East Coast of _Africa_, and in _India_, where the Monsoons or Trade-Winds are for half the Year one way, and half the Year another; only it's probable, that there may something worth noting happen, about the times of the change or shifting of the Winds, which might be obtain'd, if any Body had the Curiosity to keep the _Barometer_ at our Factories in _India_.