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L-Pjs<br />
19 this Light were not ‘bent it would fall on the<br />
Pa@ umhin the Shadot~~’ alid there. illutninate<br />
the Papers contrary to experience. And becaufe<br />
when the Paper is at a gre;it &fiance fror,-n<br />
the Hair, the Shadow is broad, and therefore<br />
the ILays TI and VS are at a great &fiance<br />
~~OIXI OIIC another, it follows that the a-Pair a&s<br />
upon the Ways of Light at a good diitance in<br />
their paffing by it-. But the a&ion is ftkongeit<br />
on the Ways which pafs by at leafi diitances,<br />
and grdnrs weaker and weaker accordingly as<br />
the Rays pafs by at diitances gteater and g1ieat-b<br />
er, as is repre’fetited in the Scheme : For+ thence<br />
it comes ti, pai‘s, that the Shadow of the Haid<br />
is much br.oader in proportion to the diitance<br />
of the Paper from the Hair, when the Paper is<br />
nearer theHair, than when it is at a great +difiance<br />
from it.<br />
osj? 2, ‘Ike Shadotis ijf aii Bodies (Nietakd<br />
Stones, Glafs, Wood, Horn, Ice, GicJ in this<br />
Light were border’d with three paralldl Fringes<br />
or Bands of colour’d Light, whereof that which<br />
was contiguous to the. Shadow, was broadeit:<br />
and molZ lunkous, and that which was ren~o~<br />
teit from it was narroweft, and fo kint, 4s not<br />
eafily to be Wibie. It was difkult to dillinguifli<br />
the Colours unlefs when, the Light fell very oba<br />
Iiqaely upon a fmooth -Papers or fonke other!<br />
Smooth white Body; fo as to make them appear<br />
inuch broader than they would other-wife do.<br />
And t-h&-l ’ thik C&km’ were plainly v%ble’ in<br />
this Order :‘. the Brft’or .innermofi.FFringe was<br />
violet and deep blue next the Shadow, and thea<br />
light blue, green and yello; in the middle, ant<br />
-4 f-St
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