And we may further conſider that yet
the external Air or Atmoſphere is ſubject
to many alterations, beſides them that
proceed from either of thoſe Quali
ties.
the external Air or Atmoſphere is ſubject
to many alterations, beſides them that
proceed from either of thoſe Quali
ties.
For the Experiment that occaſion'd
this Diſcourſe, ſeems to make it proba
ble enough that there may be ſtrange
Ebbings and Flowings, as it were, in the
Atmoſphere; or at leaſt, that it may ad
mit great and ſudden Mutations, either as
to its Altitude or its Denſity, from cauſes,
as well unknown to us, as the effects are
unheeded by us. And that You may not
think that there is nothing in Nature but
our Experiment that agrees with this our
conjecture, we might put Your Lordſhip
in minde of the Pains and Aches that are
often complain'd of by thoſe that have
had great Wounds or Bruiſes, and that
doe preſage great Mutations in the Air
oftentimes, whilſt to ſtrong and healthy
Perſons no ſign of any ſuch thing appears.
And that is alſo very memorable to this
purpoſe, which I remember I have ſome
where read in a Book of the Ingenious
Kircherus, who giving a pertinent admoni
tion concerning the various refractions
that may happen in the Air, relates, That
this Diſcourſe, ſeems to make it proba
ble enough that there may be ſtrange
Ebbings and Flowings, as it were, in the
Atmoſphere; or at leaſt, that it may ad
mit great and ſudden Mutations, either as
to its Altitude or its Denſity, from cauſes,
as well unknown to us, as the effects are
unheeded by us. And that You may not
think that there is nothing in Nature but
our Experiment that agrees with this our
conjecture, we might put Your Lordſhip
in minde of the Pains and Aches that are
often complain'd of by thoſe that have
had great Wounds or Bruiſes, and that
doe preſage great Mutations in the Air
oftentimes, whilſt to ſtrong and healthy
Perſons no ſign of any ſuch thing appears.
And that is alſo very memorable to this
purpoſe, which I remember I have ſome
where read in a Book of the Ingenious
Kircherus, who giving a pertinent admoni
tion concerning the various refractions
that may happen in the Air, relates, That
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