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# Title: Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light (shelfmark Leibn. Marg. 193)
# Folio 69, page id 1677894601:0245
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(60
Nou il Lighe De reRected not by impingins On tC
Tolid parts ot Bodies, but ty some other principle; its
Probable that as manr ot its rays as impinse on the
lolid parts oF Bodies are not reflected but stiffed and
lost in the Bodies. For othervise Wre must alloW LWO
lorts oF reflexions. Shrould all the rars De reffected wrhicp
impinse on the internal parts of clear Water or Crystal,
those substances vouid rather hare a cloudy Colour
than a clear transparener. To make Bodies look black,
iIS necestary that many rars be Aopt, retained and Iost
in them, and it seems not probable that any rays can
be Aopt and stisled in them irhich do not impinse On
Their partS.
And hence e mar understand that Bodies are much
more rare and porous than is commonty beliered. Wa-
ter is r9 times lighter, and by consequence 19 times
rarer than Gold, and Giold is (o rare as verr readilv
and rithout the least oppolition to transnit the mag-
netick FMuria, and casily to admit Ouick. silver into
its pores, and to let Water passthrough it. For a con-
care Sphere oF Gold Alled rith Water, and Podered up,
has uxon pressine the Sphere with sreat Force, let the
Nater squeeze throuon it, and Aand aIl over its out-
Side in multitudes oE (mall Drops, like dew, without
burstins Or crackins the Body ot the Grold as I have
been informed by an Fre witness. From all irhich re
may conclude, that Cold has more pores than solid
Parts, and by consequence that Water has abore Forty-
times more pores than parts. And hethat aII find out
an Llypothelis, by irhich Water may belo rare, and yet
noc be capable ot compression by Force; may doubrlels
by che lame Hypothesis make Gold and Water, and aH
Other