Micrographia eBook

This eBook from the Gutenberg Project consists of approximately 539 pages of information about Micrographia.

Micrographia eBook

This eBook from the Gutenberg Project consists of approximately 539 pages of information about Micrographia.
parts of the whitest kind I have yet observ’d with the Microscope appearing white, like flaw’d Horn or Glass, rather then clear, like clear Horn or Glass.  Next that, the filaments should each of them be rounded, if that could be done, which yet is not so very necessary, if the first be perform’d, and this third, which is, that each of the small filaments be stifned; for though they be square, or flat, provided they be transparent and stiff, much the same appearances must necessarily follow.  Now, though I have not yet made trial, yet I doubt not, but that both these proprieties may be also induc’d upon the Flax, and perhaps too by one and the same Expedient, which some trials may quickly inform any ingenious attempter of, who from the use and profit of such an Invention, may find sufficient argument to be prompted to such Inquiries.  As for the tenacity of the substance of Flax, out of which the thread is made, it seems much inferiour to that of Silk, the one being a vegetable, the other an animal substance.  And whether it proceed from the better concoction, or the more homogeneous constitution of animal substances above those of vegetables, I do not here determine; yet since I generally find, that vegetable substances do not equalize the tenacity of animal, nor these the tenacity of some purified mineral substances; I am very apt to think, that the tenacity of bodies does not proceed from the hamous, or hooked particles, as the Epicureans and some modern Philosophers have imagin’d; but from the more exact congruity of the constituent parts, which are contiguous to each other, and so bulky, as not to be easily separated, or shatter’d, by any small pulls or concussion of heat.

* * * * *

Observ.  IV. Of fine waled Silk, or Taffety.

This[5] is the appearance of a piece of very fine Taffety-riband in the bigger magnifying Glass, which you see exhibits it like a very convenient substance to make Bed-matts, or Door-matts of, or to serve for Beehives, Corn-scuttles, Chairs, or Corn-tubs, it being not unlike that kind of work, wherewith in many parts in England, they make such Utensils of Straw, a little wreathed, and bound together with thongs of Brambles.  For in this Contexture, each little filament, fiber, or clew of the Silk-worm, seem’d about the bigness of an ordinary Straw, as appears by the little irregular pieces, ab, cd, and ef; The Warp, or the thread that ran crossing the Riband, appear’d like a single Rope of an Inch Diameter; but the Woof, or the thread that ran the length of the Riband, appear’d not half so big.  Each Inch of six-peny-broad Riband appearing no less then a piece of Matting Inch and half thick, and twelve foot square, a few yards of this, would be enough to floor the long Gallery of the Loure at Paris

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Micrographia from Project Gutenberg. Public domain.