Delfino, Federico, De fluxu et refluxu aquae maris, 1559

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              quandoque recedunt, ſeu remouentur ab eis per quantita­
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              tem, ſcilicet IX grad. talis autem acceſſus, & receſſus fit ſu
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              per circulo magno per polos zodiaci nonæ, & centra circulo­
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              rum paruorum eunte. </s>
              <s>Contingit itaque, quòd per motum
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              nonæ ſphæræ, qui in 49000 annis perficitur quod quilibet
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              punctus eclipticæ nonæ ſphæræ ſecat æquinoctioualem primi
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              mobilis, uidelicet decimæ in eodem puncto, in quo ecliptica
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              decima, ſeu primi mobilis, ſecat eum: ecliptica autem octauæ
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              ſphæræ ſub diuerſa eius habitudine, propter motum eius titu
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              bationis æquinoctialem primi mobilis prope caput arietis, et
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              etiam prope caput libræ primi mobilis ſecabit, et quandoque
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              in eo, quando ſcilicet omnes eclipticæ erunt ſimul, quod con­
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              tingit, quando capite arietis, et libræ octauæ ſphæræ fuerint in
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              ſectionibus ſuorum circulorum paruorum cum ecliptica no­
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              næ ſphæræ; quæ quidem ſectiones eclipticæ octauæ cum æqui­
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              noctionali primi mobilis recedunt, quandoque ad capita arie
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              tis, & libræ primi mobilis, et quandoque ab eis recedunt, ali­
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              quando ſecundum ſucceſſionem ſignorum; aliquando contra
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              progrediendo; unde fit per iſtam uariam ſectionem eclipticæ
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              octauæ cum æquinoctionali primi mobilis, ut maxime declina­
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              tiones zodiaci, ſeu eclipticæ octauæ ſphæræ uariabiles exi­
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              ſtant, et ob hoc contigiſſe uidetur in diuerſis temporibus à
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              diuerſis aſtronomis quantitates maximarum declinationum
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              zodiaci, ſeu eclipticæ octauæ ſphæræ fuiſſe inæqualiter inuen­
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              tas maiores; nanque inuentæ ſunt à Ptolomæo, quam ab Al­
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              meone, et Albatægni, qui cum ſimilibus uiis, et modis pro­
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              ceſſerunt in inueniendo eas, non potuit hæc diuerſitas eueni­
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              re, niſi propter talem motum titubationis, aut ſimilem huic
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              talem diuerſitatem aptum cauſare ad uariationem autem ſe­
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              ctionis eclipticæ octauæ ſphæræ cum æquinoctiali primi mobi­
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              lis neceſſarium eſt, ut ſolſtitia, et ſimiliter æquinoctia continue
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              diuerſificentur: unde non ſemper, cum ſol fuerit in capite a­
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              rietis, uel libræ primi mobilis, neceſſe eſt æquinoctium eſſe,
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              ſed erat ante fuiſſe ſol, uel poſt futurum eſſe, cum fuerit in ſe­
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              ctione eclipticæ octauæ cum æquinoctionali. </s>
              <s>ex quo enim ſic </s>
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