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Show ( Il8 ] lAnd pleafed revifit in their fea-mofs vales Blue N ereid-fonns array' d in ihining fcales, Shap_es, whofe broad oar the torpid wave impels, 45 And Tritons bellowing through their twified !hells. '' So from the heart the Sanguine Strearn difiils 0' er Beauty's radiant ihrine in vermil rills, Feeds each fine nerve, each :flender hair pervades, The fkin's bright fnow with living purple lhades, 50 Each din1pling cheek with wanner blu{hes dyes, Laughs on the lips, and lightens in the eyes. --Erewhile abforb' d, the vagrant globules fwim From each fair feature, and proportion' d lirnb, Join' d in one trunk with deeper tint return To the warm concave of the vital urn. 55 II. I· " Ao_u A TIC MArns! you fway the mighty realms Of fcale and :fhe11, which Ocean overwhel1ns · ' As Night's pale Queen her ri:Gng orb reveals, And cli1nbs the zenith with refulgent wheels, 6o ( I I 9 ) Carr' d on the foam your glimmering legion rides, Your litt~e tridents heave the dafhing tides, Urge on the founding ihores their cryfl:al courfe,. Refirain their fury, or direB: their force. Carr'd on the foam. 1. 6x. The phenomena of the tides have been weB invelligated and fatisfactorily explained by Sir lfa::tc N ewton and Dr. Halley, from the reciprocal gravitations of the earth, moot:l, and fun. As the earth and moon move round a centre of motion near the earth's furface, at the fame time that they are proceeding in their annual orbit round the fun, it follows that the water on the fide of the earth nearell: this centre of motion between the earth and moon will be more attraCted by the moon, and the waters on the oppofite fide of the earth will be lefs attracted by the moon, than the central parts of the earth. Add to this, that the centrifugal force of the water on the fide of the earth furthell: from the centre of the motion, round which the earth and· moon move, (which, as was faicl before, is !'lear the furface of the earth) is greater than that on the oppofite fide of the earth. From both thefe caufes it is eafy to comprehend that the water will rife on two fides of the earth, viz. on that nearell: to the moon, and its oppofite fide, and that it will be flattened in confequence 2t the quadratures, and thus produce two tides in every lunar day, which confifls of about t\Yenty-four hours. and forty-eight minutes~ Thefe tides will be alfo affected by the folar attraClion when it coincides with the lunar one, or oppofes it, as at new and full moon, and will alfo be much influenced. by the oppofing lhores in every part of the earth. Now as the moon in moving round the centre of gravity between itfel f and the earth defcribc:s a much larger orbit than the earth defcribes round the fame centre, it follows that the centrifugal motion on the fide of the moon oppo!lte to the earth mull be much greater than the centrifugal motion of the fide of the earth oppofite to the moon round the fame centre. And fecondly, as the attraCtion of the earth ex.ertccl on the moon's fur face next to the earth is much greater th:m the attraCtion of the moon exerted on the earth·s furface, the tides on the lunar fea, (if fw ch there be,) {hould be much greater than thofc of ou r ocean. Add to thi s, that as the fame face of the moon a! ways is turned to t1 e earth, tl1e lunar tides mull: be permanent, and if the folid parts of the moon be fpherical, mufl: a! ways cover the phafis next to us. But as there arc evidently hills and vales and volcanos on this fide of the moun, the confcquencc is th~t the moon hilS no ocean, or that it is frozen •. |