1nent to annex to the other Circumſtances
that have been already ſee down concern
ing this Experiment, That it was made in
Winter, in Weather neither Froſty nor
Rainy, about the change of the Moon,
and at a place whoſe latitude is near about
51d and a half: For perhaps the force or
preſſure of the Air may vary, according
to the Seaſons of the Year, the tempera
ture of the Weather, the elevation of the
Pole, or the phaſes of the Moon; all, or
even any of them ſeeming capable to al
ter either the heighth or conſiſtence of the
incumbent Atmoſphere: And therefore
it would not be amiſs if this Experiment
were carefully tryd at ſeveral times and
places, with variety of Circumſtances. It
might alſo be try'd with Cylinders of ſe
veral Diameters, exquiſitely fitted with
Suckers, that we might know what pro
portion ſeveral Pillars of the Atmoſphere
bear, to the Weights they are able to ſu
ſtain or lift up; and conſequently, whe
ther the increaſe or decrement of the re
ſiſtance of the ambient Air, can be re
duc'd to any regular proportion to the
Diameters of the Suckers: Theſe, and
divers other ſuch things which may be
try'd with this Cylinder, might moſt of
that have been already ſee down concern
ing this Experiment, That it was made in
Winter, in Weather neither Froſty nor
Rainy, about the change of the Moon,
and at a place whoſe latitude is near about
51d and a half: For perhaps the force or
preſſure of the Air may vary, according
to the Seaſons of the Year, the tempera
ture of the Weather, the elevation of the
Pole, or the phaſes of the Moon; all, or
even any of them ſeeming capable to al
ter either the heighth or conſiſtence of the
incumbent Atmoſphere: And therefore
it would not be amiſs if this Experiment
were carefully tryd at ſeveral times and
places, with variety of Circumſtances. It
might alſo be try'd with Cylinders of ſe
veral Diameters, exquiſitely fitted with
Suckers, that we might know what pro
portion ſeveral Pillars of the Atmoſphere
bear, to the Weights they are able to ſu
ſtain or lift up; and conſequently, whe
ther the increaſe or decrement of the re
ſiſtance of the ambient Air, can be re
duc'd to any regular proportion to the
Diameters of the Suckers: Theſe, and
divers other ſuch things which may be
try'd with this Cylinder, might moſt of