Boyle, Robert, New experiments physico-mechanicall, touching the spring of the air and its effects, 1660

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1ſure of the outward againſt the ſame Glaſs.
And we ſee in bubles, that by reaſon of
this an exceeding thin film of Water is
often able, for a good while, to hinder the
eruption of a pretty quantity of Air.
And
this may be alſo more conſpicuous in
thoſe great Spherical bubles that boyes
ſometimes blow with Water, to which
Sope has given a Tenacity.
But that, if the
preſſure of the ambient Air were remov'd,
the internal Air may be able to break
thicker Glaſſes then thoſe lately men­
tion'd, will appear by ſome of the follow­
ing Experiments; to which we ſhall there­
fore now haſten, having, I fear, been but
too prolix in this Excurſion, though we
thought it not amiſs to annex to our firſt
Experiments ſome general Conſiderati­
ons touching the Spring of the Air, be­
cauſe (this Doctrine being yet a ſtranger
to the Schools) not onely we finde not
the thing it ſelf to be much taken notice
of; but of thoſe few that have heard of it,
the greater part have been forward to re­
ject it, upon a miſtaken Perſwaſion, that
thoſe Phænomena are the effects of natures
abhorrency of a Vacuum, which ſeem to
be more fitly aſcribeable to the weight
and Spring of the Air.

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