10 Furthermore, the current in the great Ocean, could not haue beene maintained to runne continually one way, from the beginning of the world vnto this day, had there not beene some thorow passage by the fret aforesayd, and so by circular motion bee brought againe to maintaine it selfe:  For the Tides and courses of the sea are maintayned by their interchangeable motions:  as fresh riuers are by springs, by ebbing and flowing, by rarefaction and condensation.

So that it resteth not possible (so farre as my simple reason can comprehend) that this perpetuall current can by any meanes be maintained, but onely by continuall reaccesse of the same water, which passeth thorow the fret, and is brought about thither againe, by such circular motion as aforesayd. [Marginal note:  The flowing is occasioned by reason that the heate of the moone boyleth, and maketh the water thinne by way of rarefaction.] And the certaine falling thereof by this fret into Mar del Sur [Marginal note:  An experience to prooue the falling of this current into Mar del Sur.] is prooued by the testimonie and experience of Bernard de la Torre, who was sent from P. de la Natiuidad to the Moluccae, Anno domini 1542. by commandement of Anthony Mendoza, then Viceroy of Noua Hispania, which Bernard sayled 750.  Leagues, on the Northside of the Aequator, and there met with a current, which came from the Northeast, the which droue him backe againe to Tidore.

Wherfore, this current being proued to come from C. de buona Speranca to the fret of Magellan, and wanting sufficient entrance there, by narrownes of the straite, is by the necessitie of natures force, brought to Terra de Labrador, where Iaques Cartier met the same, and thence certainly knowen, not to strike ouer vpon Island, Lappia, &c. and found by Bernard de la Torre in Mar del Sur, on the backeside of America:  therefore this current (hauing none other passage) must of necessity fall out thorow this our fret into Mar del Sur, and so trending by the Moluccae, China, and C. de buona Speranca, maintaineth it selfe, by circular motion, which is all one in nature, with Motus ab Oriente in Occidentem.

So that it seemeth, we haue now more occasion to doubt of our returne, then whether there be a passage that way, yea or no:  which doubt, hereafter shall be sufficiently remooued.  Wherefore, in mine opinion, reason it self, grounded vpon experience, assureth vs of this passage, if there were nothing els to put vs in hope thereof.  But least these might not suffice, I haue added in this chapter following, some further proofe hereof, by the experience of such as haue passed some part of this discouerie:  and in the next adioining to that the authority of those, which haue sailed wholy, thorow euery part thereof.

To proue by experience of sundry mens trauels, the opening of some part of
  this Northwest passage:  whereby good hope remaineth of the rest.

Chap. 3.

Paulus Venetus, who dwelt many yeres in Cataia, affirmed that hee sayled 1500 miles vpon the coastes of Mangia, and Anian, towards the Northeast:  alwayes finding the Seas open before him, not onely as farre as he went, but also as farre as he could discerne.