1paſſing to the next, I ſhall leave it to your
Lordſhip to conſider how far theſe tryals
of ours will either confirm or disfavor
the new Doctrine of ſeveral eminent Na
turaliſts, who teach, That in all motion
there is neceſſarily a Circle of Bodies, as
they ſpeak, moving together; and whe
ther the Circles in ſuch motion be an Ac
cidental or Conſequential thing or no.
Lordſhip to conſider how far theſe tryals
of ours will either confirm or disfavor
the new Doctrine of ſeveral eminent Na
turaliſts, who teach, That in all motion
there is neceſſarily a Circle of Bodies, as
they ſpeak, moving together; and whe
ther the Circles in ſuch motion be an Ac
cidental or Conſequential thing or no.
TIs a known thing to thoſe that are con
verſant in the Hydroſtaticks, That
two Bodies which in the Air are of equal
weight, but of unequal bulk, as Gold,
for inſtance and Iron, being afterwards
weighed in Water, will loſe their Æqui
librium upon the change of the ambient
Body, ſo that the Gold will ſink lower
then the Iron; which, by reaſon of its
greater bulk, has more Water to lift
or diſplace, that it may ſink. By Analogy
to this Experiment, it ſeem'd probable,
that if two weights did in our Engine
ballance each other, when the Glaſs was
full of Air; upon the exſuction of a
great part of that Air, ſo notable a change
in the conſiſtence of the ambient Body,
verſant in the Hydroſtaticks, That
two Bodies which in the Air are of equal
weight, but of unequal bulk, as Gold,
for inſtance and Iron, being afterwards
weighed in Water, will loſe their Æqui
librium upon the change of the ambient
Body, ſo that the Gold will ſink lower
then the Iron; which, by reaſon of its
greater bulk, has more Water to lift
or diſplace, that it may ſink. By Analogy
to this Experiment, it ſeem'd probable,
that if two weights did in our Engine
ballance each other, when the Glaſs was
full of Air; upon the exſuction of a
great part of that Air, ſo notable a change
in the conſiſtence of the ambient Body,