Bacon, Francis, Sylva sylvarum : or, a natural history in ten centuries

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5824Natural Hiſtory; of old Walls, eſpecially tow ards the bottom, the Morter will become as
hard as the Brick:
We ſee alſo, that the Wood on the fides of Veſſels of
Wine, gathereth a cruſt of Tartar harder than the Wood it ſelf;
and Scales
likewiſe grow to the Teeth, harder than the Teeth themſelves.
Moſt of all, Induration by Aßimilation appeareth in the bodies of Trees,
1190. and Living Creatures:
For no nouriſh ment that the Tree receiveth, or that
the Living Creature receiveth, is ſo hard as Wood, Bone, or Horn, &
c. but
is indurated after by Aſſimilation.
THe Eye of the Underſtanding, is like the Eye of the Senſe: For as you
2291. may ſee great objects through ſmall Cranies, or Levels;
ſo you may ſee
33Experiment
Solitary,
touching the
Verſion of Wa-
ter into Air.
great Axioms of Nature, through ſmall and contem ptible inſtances.
The
ſpeedy depredation of Air upon watry moiſture, and verſion of the ſame in-
to Air, appeareth in nothing more viſible than in the ſudden diſcharge, or
vaniſhing of a little Cloud of Breath, or Vapor, from Glaſs or the Blade of
a Sword, or any ſuch poliſhed Body;
ſuch as doth not at all detain or im-
bibe the moiſture:
For the miſtineſs ſcattereth and breaketh up ſuddenly.
But the like Cloud, if it were oily or fatty, will not diſch arge; not becauſe it
ſticketh faſter, but becauſe Air preyeth upon Water, and Flame, and Fire,
upon Oyl;
and therefore, to take out a ſpot of Greaſe, they uſe a Coal upon
brown Paper, becauſe fire worketh upon Greaſe or Oyl, as Air doth upon
Water.
And we ſee Paper oiled, or Wood oiled, or the like, laſt long
moiſt;
but wet with Water, dry or putrifie ſooner. The cauſe is, for that
Air meddleth little with the moiſture of oyl.
THere is an admirable demonſtration in the ſame trifling inſtance of the
4492. little Cloud upon Glaſs, or Gems, or Blades of Swords of the force of
55Experiment
Solitary,
touching the
Force of Vni-
on.
Union, even in the leaſt quantities, and weakeſt Bodies, how much it con-
duceth to preſervation of the preſent form, and the reſiſting of a new.
For
mark well the diſcharge of that Cloud, and you ſhall ſee it ever break up, firſt
in the skirts, and laſt in the midſt.
We ſee like wiſe, that much Water draw-
eth forth the Juyce of the Body infuſed, but little Water is imbibed by the
Body:
And this is a principal cauſe, why, in operation upon Bodies, for their
Verſion or Alteration, the tryal in great quantities doth not anſwer the tryal
in ſmall, and ſo deceiveth many;
for that (I ſay) the greater Body reſiſteth
more any alteration of Form, and requireth far greater ſtrength in the Active
Body that ſhould ſubdue it.
WE have ſpoken before in the Fifth Inſtance, of the cauſe of Orient
6693. Colours in Birds;
which is by the fineneſs of the Strainer, we will
77Experiment
Solitary,
touching the
Producing of
Feathers and
Hairs of di-
vers Colours.
now endeavor to reduce the ſame Axiom to a Work.
For this Writing
of our Sylva Sylvarum, is (to ſpeak properly) not Natural Hiſtory, but a
high kinde of Natural Magick.
For it is not a diſcription onely of Na-
ture, but a breaking of Nature, into great and ſtrange Works.
Try there-
fore the anointing over of Pigeons, or other Birds, when they are but in
their Down, or of Whelps, cutting their Hair as ſhort as may be, or of
ſome other Beaſt;
with ſome oyntment, that is not hurtful to the fleſh,
and that will harden and ſtick very cloſe, and ſee whether it will not alter
the colours of the Feathers, or Hair, It is received, that the pulling off
the firſt Feathers of Birds clean, will make the new come forth White:
And
it is certain, that White is a penurious colour, and where moiſture is ſcant.
So Blew Violets, and other Flowers, if they be ſtarved, turn pale and white.

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