1would make them loſe their Æquili
brium.
brium.
Experi
ment 34.
ment 34.
But being deſirous at the ſame time to
make a tryal, for a certain Deſign that
needs not here be mention'd, we took
for one of our weights a dry Bladder,
ſtrongly tyed at the Neck, and about
half fill'd with Air (that being a weight
both ſlight, and that would expand it
ſelf in the evacuated Glaſs) and faſtning
that to one part of our formerly menti
on'd exact ballance (which turns with the
32d part of a Grain) we put a Metalline
counterpoiſe into the oppoſite Scale; and
ſo the two weights being brought to an
Æquilibrium, the ballance was convey'd
into the Receiver, and ſuſpended from the
Cover of it.
make a tryal, for a certain Deſign that
needs not here be mention'd, we took
for one of our weights a dry Bladder,
ſtrongly tyed at the Neck, and about
half fill'd with Air (that being a weight
both ſlight, and that would expand it
ſelf in the evacuated Glaſs) and faſtning
that to one part of our formerly menti
on'd exact ballance (which turns with the
32d part of a Grain) we put a Metalline
counterpoiſe into the oppoſite Scale; and
ſo the two weights being brought to an
Æquilibrium, the ballance was convey'd
into the Receiver, and ſuſpended from the
Cover of it.
But before we proceed further, we muſt
note, That preſently after the laying on
of the Cover, the Bladder appear'd to
preponderate, whereupon the Scales being
taken out, and reduc'd very near to an Æ
quilibrium, yet ſo, that a little advantage
remain'd on that ſide to which the Metal
line weight belong'd; they were again let
down into the Receiver, which was pre
ſently made faſt with Plaiſter, and a hot
Iron: Soon after which, before the Pump
note, That preſently after the laying on
of the Cover, the Bladder appear'd to
preponderate, whereupon the Scales being
taken out, and reduc'd very near to an Æ
quilibrium, yet ſo, that a little advantage
remain'd on that ſide to which the Metal
line weight belong'd; they were again let
down into the Receiver, which was pre
ſently made faſt with Plaiſter, and a hot
Iron: Soon after which, before the Pump