any power or efficiency of second Causes, than an incorporeal and spiritual substance is; and therefore whether Angels be simply incorporeal, or that they be Corporeal, it neither maketh for nor against their immortality, which consists only in the benign emanation of the Divine conservative power of the Almighty: And therefore doth profound _Bradwardine_ draw that invincible, and undeniable Corollary of verity, _Quod necesse est Deum servare quamlibet Creaturam immediatiùs quacunq; causa creata_. 4. Though the most of the bodies that are known unto us be divisible, alterable and discerpible, or dissipable in respect of our conceptions of them, yet actually we may find many bodies in nature that are not, nor ever were dissipated or dissevered _secundum totum_, though there may be alteration in their superficial parts, as the Earth, the Sun, Moon, the rest of the Planets, and those great and glorious bodies that we call Stars; so that for the duration of bodies _à parte post_ we can conclude little of certainty. And as there are bodies that _secundum suum totum_, are not severed or dissipated, so there are some bodies that though they may suffer division and dissipation into smaller parts, yet do those parts though most minute, suffer no real transmutation, but remain of the same Homogeneous nature they were before, as is most manifest in Silver dissolved in _Aqua fortis_, wherein though it be so severed and dispersed, that it appear not at all unto the eye, yet may it be from thence recovered and redintegrated into its own nature as it was before. And also the Masters of the more abstruse Philosophy affirm to us upon their own certain experience, that though metallick _Mercury_ may be divided into insensible and invisible Atomes, yet still it retains the nature of metallic _Mercury_, and that thus _Helmont_ tells us: _Si non vidissem argentum vivum eludere quamcunq; artificum operam, adeò, quod aut totum avolet adhuc integrum, aut totum in igne permaneat, atq; utrolibet modo, servet impermutabilem sui ac primitivam identitatem, identitatisq; homogeneitatem anaticam: dicerem artem non esse veram, quæ vera est, sine mendacio, atq; longè verissima_. So also there are bodies which although they suffer division and separation by some other bodies dissevering of them, yet by motion of coition they soon close and redintegrate themselves, having thereby suffered no detriment at all, as is most apparent in the pure body of the Æther, the visible species of things, the images in a Looking-glass and in shadows, which are all bodies. So that seeing bodies, no more than Spirits to be annihilable by second causes, and that there are some bodies that are not dissipated _secundum totum_, and that there are others that though they are separable into more minute particles, yet do they remain in Analytical and Homogeneous Identity, and that there are others that though they be actually for a small moment divided, yet they do instantaneously