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# Title: Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light (shelfmark Leibn. Marg. 193)
# Folio 65, page id 1677894601:0241
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1677894601&page=241
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(65)
eren chickness, that through a Miscroscope ther have
appeared ot the Came Colour at their edges and cor-
ners wtere the included medium mas terminated, irhich
chey appeared oF in other places. Floverer it rill add
nuehto our Patisfaction, if those corpulcles conld be dis-
corered rith Miscroscopes; erhich it we Mail at lenoth
actain tO, I Fear it will Dc the utmost improrement ot
this sense. For it scems impostible to sec the more le-
eret and noble works of nature mithin the corpuleles
by realon of cheir transpareney.
P R O P, VITI.
The cause of Reflexion is not the impinoino of L ight on
the solid or impervious parts of Bodies, as is commonly be-
lieved.
This will appear by the follorine Considerations.
First, That in the passase of Lieht out ot Crlals into
Air there is a rellexion as Arons as in its pastase out ot
Air into Cla(S, Or rather a little Aronger, and by many
degrees sronger than in its passase out of Glass into
Water. And it seems not probable that Air Mould have
more refectino parts than Nater or Cla(S. But if that
Tould possibly De supposed, vet it will arail nothins;
For the reflexion is as srons or Aronger Wrtren the AIT1S
dramnaras trom the Cilals, (suppole in the Air Dump
invented by MIT. Boyle) 25 irhien it is adjacent to il.
Secondir, IFLighe in its paltase out of Crlass into Air
De incident more obliquelr than at an Ansle ot 40 Or
4Y degrees it is rhrolly retlected, it lels obliquely IE 15
in great meature trantimitted. Nom it is not to beima
Bined that Lishe at one desree ot obliquity Monta meet
H
WIF