MICROGRAPHIA RESTAURATA


MICROGRAPHIA RESTAURATA




Linda Hall Library Collection Table of Contents



THE PREFACE

Micrographia Restaurata, & c
  An EXPLANATION of the FIRST PLATE
  An EXPLANATION of the SECOND PLATE
  An EXPLANATION of the THIRD PLATE
  An EXPLANATION of the FOURTH PLATE
  An EXPLANATION of the FIFTH PLATE
  An EXPLANATION of the SIXTH PLATE
  An EXPLANATION of the SEVENTH PLATE
  An EXPLANATION of the EIGHTH PLATE
  An EXPLANATION of the NINTH PLATE
  An EXPLANATION of the TENTH PLATE
  An EXPLANATION of the ELEVENTH PLATE
  An EXPLANATION of the TWELFTH PLATE
  An EXPLANATION of the THIRTEENTH PLATE
  An EXPLANATION of the FOURTEENTH PLATE
  An EXPLANATION of the FIFTEENTH PLATE
  An EXPLANATION of the SIXTEENTH PLATE
  An EXPLANATION of the SEVENTEENTH PLATE
  An EXPLANATION of the EIGHTEENTH PLATE
  An EXPLANATION of the NINETEENTH PLATE. The Figures in this Plate shew the Construction of the Feathers of Birds
  An EXPLANATION of the TWENTIETH PLATE
  An EXPLANATION of the TWENTY-FIRST PLATE
  An EXPLANATION of the TWENTY-SECOND PLATE
  An EXPLANATION of the TWENTY-THIRD PLATE
  An EXPLANATION of the TWENTY-FOURTH PLATE
  An EXPLANATION of the TWENTY-FIFTH PLATE
  An EXPLANATION of the TWENTY-SIXTH PLATE
  An EXPLANATION of the TWENTY SEVENTH PLATE
  An EXPLANATION of the TWENTY-EIGHTH PLATE
  An EXPLANATION of the TWENTY-NINTH PLATE
  An EXPLANATION of the THIRTIETH PLATE
  An EXPLANATION of the THIRTY-FIRST PLATE
  An EXPLANATION of the THIRTY-SECOND PLATE
  An EXPLANATION of the THIRTY-THIRD PLATE
  INDEX


Electronic edition published by Cultural Heritage Langauge Technologies and funded by the National Science Foundation International Digital Libraries Program. This text has been proofread to a low degree of accuracy. It was converted to electronic form using data entry.

Micrographia Restaurata, & c

    Degrees, as the Letter K shews, which is an √¶qui-angular bexagonal Figure compounded of twelve Globules : And in the same Manner, 25, or 27, or 36, or 42, &c. may be combined.

Nor does it hold only in Superficies, but also in Solidity ; for 'tis beyond Dispute, that if a fourth Globule be laid on the third in this Texture, it composes a regular Tetrabedron, which is a very usual Figure amongst the Chrystals of Alum. And, indeed, amongst the Variety of regular Shapes into which the smooth Surfaces of Alum are observed to be chrystalized, there is not one but may be imitated by a such-like Position of Globules.

The cubical Forms of Sea-Salt and Sal-Gem, are also (our Author supposes) composed of such a Position of Globules, as the Letter L shews. Vitriol, Salt-Petre, Chrystal, Hore- Frost, &c. have likewise, he says, all their various Consigurations from Globules differently combined.



An EXPLANATION of the FIFTH PLATE

This Plate exhibits several Kinds of Figures produced by Freezing, which are extremely curious and wonderful, and deserve the Attention of all diligent Observers of the Works of Nature.

PLATE V. FIG. 1. One of the Six-branched Figures on the Surface of Urine, when it begins to freeze

THESE Figures had usually a Center,
Urine frozen.
a, from whence the Branches extended them- selves : And wherever a Center was, the Branchings from it, a b, a c, a d, a e, a f, a g, were never more nor less than six, which all issued very nearly from the same Point or Center a, tho' sometimes not exactly ; and inclined to one another, at an Angle of about sixty Degrees, without any sensible Variation ; but as the whole six Branches composed a solid Angle, they must necessarily be something less.

The Middle-Lines or Stems of these Branches, a b, a c, a d, a e, a f, a g, appeared somewhat whiter, and a little higher than any of the intermediate Lines, seeming to rise above the Surface of the Urine : And the Center a was evidently the most prominent of the whole, resembling the Apex of a solid Angle or Pyramid.

The lateral Branchings from the six large Stems, such as o p, m q, &c. were each of them inclined to the Stems from which they issued, at the same Angle (of about sixty De- grees) as the said large Stems were to one another ; the bigger Branches always rising higher than the less, and the less higher than the least, and so in proportionate Gradations.

These Side-Shoots were each of them parallel to that great Branch next which it lay ; and all the Shoots on one Side were parallel to each other, as well as to the great Branch next them. For Example : The lateral Shoots p o, q r, are parallel to one another, and are also at the same time parallel to the large Branch a b.

Some of the Stems proceeded strait, and decreased in Thickness towards the End, as a g. Others grew bigger and knotty towards the Middle ; and the Side-Shootings, as well as the main Stems, from Cylinders became a Sort of semi-circular Planes, in a most admirable and curious Order, and exceedingly delicate and regular, as may he seen at a b, a c, a d, a e, a f: (These circular Figures, in the lateral Shoots, were also still more remarkable at b i.) But towards the End of some of these Stems, they began again to diminish and recover their former Branchings, as about k and n.

Such lateral Branches as q m, had many collateral Shootings, (if we may call them so) as s, t ; most whereof had sub-collateral ones, as v, w ; which again had others less, and those lesser ones had still minuter Shootings issuing from them.

The Branchings from the main Stems were not joined by any regular Line, nor did the Side of one lie over that of the other ; but in the small collateral and sub-collateral Shoo?- ings, one Branch lay over the Side of the next that approached to it, as the Feathers do in a Bird's Wing, See the Figures 1, 2, 3, 4, 5, 6, 7, 8, 9, 10.

Many such-like Configurations were observed, of different Sizes, from the Bigness of a Two-pence, to three or four Foot long, of which several were pretty round, having all

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