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| An Estimate of the Quantity of Vapours raised out of the Sea, as derived from Experiment: Together with an Account of the Circulation of the wat'ry Vapours of the Sea, and of the Cause of Springs . Presented to the Royal Society by Mr. E. Halley , F. R. S. | 1 |
| The True Theory of the Tides , extracted from that admired Treatise of Mr. Isaac Newton , Intituled Philosophiæ Naturalis Principia Mathematica ; being a Discourse presented with that Book to the late K ing James , by Mr. E. Halley . | 13 |
| A Theory of the Variation of the Magnetical Compass , by Mr. E. Halley . | 27 |
| An Account of the Cause of the Change of the Variation of the Magnetical Needle , with an Hypothesis of the Structure of the Internal Parts of the Earth ; as it was presented to the Royal Society in one of their late Meetings, by Mr. E. Halley . | 43 |
Table of Contents
A Table of the Discourses contain'd in this Volume
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