Boyle, Robert - New experiments physico-mechanicall, touching the spring of the air and its effects

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The 30 Experiment, concerning the na
ture of a fluid Body, illuſtrated by the exam
ple of ſmoak which in ſeveral circumſtances
ſeems very much to reſemble the property of a
fluid Body, 224 &c. A conjecture of the
cauſe of the Suns undulation. 228

The 31 Experiment, concerning the Phæ
nomena of two flat Marbles exactly plain'd
and wrought together, and the true reaſon
thereof, 229. The Authors intention for the
further proſecution thereof, & what hindred
him; the reaſon why the under Marble did
not fal from the upper (being onely conjoynd
with Spirit of Wine) when the Receiver was
evacuated. And a notable relation concern
ing the coheſion of flat Bodies. 231 &c.

The 32 Experiment, touching the forcible
preſſure of the Air againſt the outward ſu
perficies of a Valve, faſten'd upon the ſtop
cock of the Receiver. The Diameter of it,
and the weight it ſuſtain'd. 233 &c.

The 33 experiment, touching the great preſ
ſure of the Air againſt the under ſuperficies
of the Sucker, 236 &c. what weight was re
quiſite to depreſs it, & what weight it would
lift and carry up with it, 239 &c. what im
provement & uſe there may be made of this
experiment, 242. A Diſcourſe touching the
nature of Suction, proving that fuga vacui
is not the adequate cauſe thereof. 243 &c.

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