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Finery of its constituent Parts, it being, according tofòme late nice Microscopical Observations (29), composed of divers thin Scales; and thefe made up of one fingle minuteft Thread, or Fibre, wound round and rounrt;-foras not-to-cross-one another in any one Placę, and yet to meet,, fomein two, and. fome in more different Centers, A Web not to be woven, an Optick Lens not to be wrought, by any Art less than infinite Wisdom. ? : Laftly, To conclude the Parts of this admirable Organ, I shall make only one Remark more, and that is about its Nerves. And here among others; the admirable Make of the Optick i Nerves might:
Befides this : in general between the Eyes of Birds
zou 3 i Medullary
Medullary Part (3o) terminating in the Brain it felf, The Teguments propagated from the Meninges, and terminating in the Coats of the Eye; and their. commodious Infertions into the Ball of the Eye, în fòme direćtly oppofite to the Pupil of the Eye, în others obliquely towards one fide (31). But moff of thèse things have been treated of, and the Convenience hereoffet forth by others that have written. of God's Works. I shall therefore take notice only of one wife Provision the Creator hath made about the Motion of the Eye, by uniting into one, the Third Pair of Nerves, called the Motory-Nerves (32); each of which fending its Branches into each Múfélé of each Eye, would căufe a Diftortion in the Eyes; but being united into one, near their Infertion into the Brain, do thereby caufe both Eyes to have the fame Motion; 'fo that when : is moved this way, and that way, to this and that Objeći, the other Eye is turned the fame way also. . . . . * · * * * - |- - * * * * * * ---- :::: ; * ·, . . . . .
Thus from this tranfient and flight View (I may callit) of the Parts of the Eye, it appears what an admirable Artist was the Contriver thereof. And now in the 3, ff; ; ; ; ; o -r: , : ? o Seventh, andlaft Place, Letuseonfider what Provifion this admirable Artift hath made for the Guard and Security of this fo well formed Organ (33). And here we muta the Guard equivalent to # · » Gilt i 2 . . . . . . . . . . . . . |- ,
Ufè and Excellency of the Part. The whole Organ - fortified, and fenced with ftrong, compact Bones, lodged in aftrong, well-made Socket, and the Eye it felf guarded with a nice-made Cover : . Its Humours, and its inward Tunicks, are indeed ten
- - : , der,
der, proportionate to their tender, curious Ufes : but the Coats, without, are context and callous, firm and strong. And in fome Animals, particu
and ferve for Tears ; together with the Reason why Man alone who is a fociable Animal, doth exhibit his focial Affestions by fuch outward Tokens, as Tears; the Nerves also, and other Organs asting in this Ministry. I might also speak of thế Paffiges for discharging the superfluous Moisture of the Eyes through the Noftrils, and much more of the like kind. But it would take up too much Room in these Notes ; and therefore it shall fuffice to give only fuch Hints, as may create a Suspicion of a noble OEconomy and Contrivance in this (I had almost faid) leaft confiderable part of the Eye. But for Particulars I shall refer to the Anatomists ; and for fome of thefe things, particularly to Dr. Willis's cereb. Anat, and de Anim. Brut, and Mr. Cowper's Elegant Cuts in the 1 1 Tab. of his Anatomy. To the Eye-lids we may add another Guard afforded the Eyes of most Quadrupeds, Birds, and Fishes, by the nistitating Membrane, which Dr. Willis gives this Account of, Plurimis [Animalibus] quibus Mufulus Suspensorius adest (which Limitation he needed not to have added) etiam alter Membranofus conceditur, qui iuxta interiorem oculi canthum fitus, quando elevatur, Oculi globum ferè totum obtegit. Hujus usus esse videtur, ut cum Bestis inter gramina, &c. capita sua propter vitium capessendum demergunt, hic Mufulus oculi Pupillam, me à fipularum incurfu feriatur, oculi munitque. De Anim. Brut. p. 1. c. 15. This Membrane Man hath not, he having little occafion to thruft his Head into fuch Places of Annoyance, as Beafts, and other Animals ; or if he hath, he can defend his Eyes with his Hands. But Birds (who frequent trees and bushes) and Quadrupeds, (hedges, and long grafs,) and who have no part ready, like the Hand, to fence off Annoyances; these, Ifay, have this incomparable Provifion made for the Safety of their Eyes. And And for Fishes, as they are destitute of Eye-lids, becaufe in the Waters there is no occafion for a Defensative against Duft and Motes, offenfive to the Eyes of Land-Animals, nor to moiften and wipe the Eyes, as the Eye lids do; fo the Niétitating-Membrane is an abundant Provifion for all their Occasions, without the Addition of the Eye-lids. - |And now, if we reflest, are these the Works of anything but a wife and indulgent Agent ?