to the Center with a continuity, that is, without any potential pores dividing its matter; as in Quicksilver, diduct its body to the Cir∣cumference as much as you can, yet its part will concentrate with a continuity: but if you diduct earth, you will perceive its porosity, so that its body is altogether discontinuated. Water is then weigh∣ty with a crassitude.
I prove it. First, that it is weighty, or that its parts move from the Circumference to the Center: Water when divided through force doth unite it self in globosity, as appears in drops, where all its parts, falling from the circumference close to their center, form a globosity.
2. Water doth not only in its divided parts concentrate, but also in its whole quantity. This is evident to them that are at sea, and approaching to the Land, they first make it from the top-mast-head; whereas standing at the foot of it upon the Deck they cannot. The reason is, because the water being swelled up in a round figure, the top is interposed between the sight of those, that stand upon the Deck, and the Land-marks, as hils, or steeples; but they, that are aloft, viz. upon the Yard arm, or top-mast, may easily discover them, because they stand higher then the top of the swelling of the water. The same is also remarkeable in a Bowl filled up with water to the Brim, where you may discern the water to be elevated in the mid∣dle, and proportionably descending to the Brim to constitute a round Figure. Archimedes doth most excellently infer the same by de∣monstration; but since the alleadging of it would protract time, and try your patience, I do omit it.
Lastly, The Stars rising and going down do plainly demonstrate the roundness of the water; for to those that sayl in the Eastern Seas, the Stars do appear sooner then to others in the Western Oce∣an; because the swelling of the water hindreth the light of the Stars rising in the East, from illuminating those in the West. The same Argument doth withal perswade us, that the earth is round, and consequently that its parts do all fall from the Outside to the Cen∣ter.
V. Secondly, That water hath a crassitude joyning to its gravity, sight doth declare to us; for it is impossible to discern any porosity in water, although dropped in a magnifying Glass; which in Sand is not. Its levor or most exact smoothness expressing its continuity, & accompanying its weight, is an undoubted mark of its crassitude,