1be quickly diſpatcht, and therefore may
be try'd in our Engine, though it leak a
little; becauſe the Air may be faſter drawn
out, by nimbly plying the Pump, then
it can get in at undiſcern'd leaks; I ſay at
undiſcern'd leaks, becauſe ſuch as are big
enough to be diſcover'd can ſcarce be un
eaſie to be ſtopt. The other ſort of Ex
periments conſiſts of thoſe that require
not onely that the internal Air be drawn
out of the Receiver, but that it be like
wiſe for a long time kept out of it. Such
are the preſervation of Animal and o
ther Bodies therein, the germination and
growth of Vegetables, and other tryals
of ſeveral ſorts, which it is apparent can
not be well made unleſs the external Air
can, for a competent while, be excluded:
Since even at a very ſmall leak there may
enough get in, to make the Vacuum ſoon
looſe that name; by which I here declare
once for all, that I underſtand not a ſpace
wherein there is no body at all, but ſuch
as is either altogether, or almoſt totally
void of Air.
be try'd in our Engine, though it leak a
little; becauſe the Air may be faſter drawn
out, by nimbly plying the Pump, then
it can get in at undiſcern'd leaks; I ſay at
undiſcern'd leaks, becauſe ſuch as are big
enough to be diſcover'd can ſcarce be un
eaſie to be ſtopt. The other ſort of Ex
periments conſiſts of thoſe that require
not onely that the internal Air be drawn
out of the Receiver, but that it be like
wiſe for a long time kept out of it. Such
are the preſervation of Animal and o
ther Bodies therein, the germination and
growth of Vegetables, and other tryals
of ſeveral ſorts, which it is apparent can
not be well made unleſs the external Air
can, for a competent while, be excluded:
Since even at a very ſmall leak there may
enough get in, to make the Vacuum ſoon
looſe that name; by which I here declare
once for all, that I underſtand not a ſpace
wherein there is no body at all, but ſuch
as is either altogether, or almoſt totally
void of Air.
Now this diſtinction of Experiments
I thought fit to premiſe to the enſuing
Narratives, becauſe upon tryal, we found
it ſo exceeding (and ſcarce imaginable) dif-
I thought fit to premiſe to the enſuing
Narratives, becauſe upon tryal, we found
it ſo exceeding (and ſcarce imaginable) dif-
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