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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1667 Excerpt: ...these (which were indeed the first microscopical pores I ever saw, and perhaps, tliat were ever seen, for I had not met with any Writer or Person, that had made any mention of them before this) but me thought I had with the discovery of them, presently hinted to me the true and intelligible reason of all the phenomena of Cork 5 As, First, if I enquir'd why it was so exceeding light a body? my Microscope could presently inform me that here was the fame reason evident that there is found for the lightness of froth, an empty Honey-comb, Wool, aSpunge, a Pumice-stone, or the like 5 namely, a very small quantity of a solid body, extended into exceeding large dimensions. Next, it seemed nothing more difficult to give an intelligible reason, why Cork is a body so very unapt to fuck and drink in Water, and consequently preserves it self, floating on the top of Water, though left on it never so long: and why it is able to stop and hold air in a Bottle, though it be there very much condens'd and consequently presses very strongly to get a paflage out, without suffering the least bubble to pass through its substance. For, as to the first, since our Microscope informs us that the substance of Cork is altogether sill'd with Air, and that that Air is perfectly enclosed in little Boxes or Cells distinct from one another. It seems very plain, why neither the Water, nor any other Air can easily insinuate it self into them, since there is already within them an intus existenf, and consequently, why the pieces of Cork become so good floats for Nets, and floppies for Viols, or other close Vessels. And thirdly, if we enquire why Cork has such a springiness and swelling nature whem comprels'd and how it comes to suffer so great a compression, or seeming penetration of dimensions, s...

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