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Hooke, Robert; Allestry, James [Bearb.]
Micrographia: Or Some Physiological Descriptions Of Minute Bodies Made By Magnifying Glasses: With Observations And Inquiries thereupon — London: Printed for James Allestry, Printer to the Royal Society, 1667

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https://doi.org/10.11588/diglit.68888#0151
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siderable thicknest, I oblerv’d that both the upper and the under sides
of it were curioussy quill’d, furrow'd, or grain’d, as it were, which when
the Sun (hone on the Plate, was exceeding easily to be perceiv’d to be
much after the (hape of the lines in the 6. Figure cf the 8. Scheme^ that i$,
they consisted of several (h eight ends of parallel Plates, which were of
divers lengthsand angles to one another without any certain order.
The cause of all which regular Figures (and of hundreds of others^
namely of Salts., Minerals^ Metals., &c. which I could have here inserred.
Would it not have been too long) seemstobe deducible from the same
Principles,which I have (in the 13. Observation) hinted only, having not
yet had time to compleat a Theory os them. But indeed (which I there
also hinted) I judge it the second step by which the Pyramid of natu-»
ral knowledge (which is the knowledge of the form of bodies) is to
beascended: And whosoever will climb it, must be well furnish’d
with that which the Noble Verulam calls Sealant Intellect us ; he must
have (caling Ladders, otherwise the steps are so large and high, there
will be no getting up them, and confequently little hopes of attaining
any higher station, suchas to the knowledge of themost (imple principle
of Vegetation manifested in Mould and Musliromes, which, as I else-
where endeavoured to (hew, seems to be the third step 5 for it feemsto
me, that the Intellect ef man is like his body, destitute of wings, and
cannot move from a lower to a higher and more sublime station of know-
ledg,otherwife then step by step,nay even there where the way is prepar’d
and already made passible 5 as in the Elements os Geometry, or the like,
where it is fain to climb a whole feries of Proportions by degrees, besore
it attains the knowledge of one Problems. But if the afcent be high, dif-
ficult and above its reach, it must have recourfe to a novum organum^
some new engine and contrivance, feme new kind of Algebra^ or Analy-
tic/^ Art before it can (urmount it.

Observ. X V. Of Kettering-stone, and of the pores of Inani-
mate bodies,
THis Stone which is brought srom Kettering in Northampton-srire^rui
digg’d out of a Quarry, as I am inform’d, has a grain altogether
admirable, nor have I ever feen or heard of any other stone that has the
like. It is made up of an innumerable company of (mall bodies, not all
of the same cize or (hape, but for the most part, not much differing from
a Globular form, nor exceed they one another in Diameter above three
or four times 5 they appear to the eye, like the Cobb or Ovary of a Her-
rings or some smaller fisties, but for the most part, the particles feem
somewhat lest, and not so uniform 5 but their variation from a perfect
globular ball,feemsto be only by the pressure of the contiguous bals which
have a little deprest and protruded those toucht fides inward, and forc’d
the

Schutt.
Fig. I.
 
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