1of that colour to be moſt eaſily kindled)
& carefully cloſing the Veſſel we brought
it to a Window at which the Sun, not very
faire from the Meridian, ſhone in very free
ly: then drawing out the Aire with ſpeed
united the Sun-beames with a burning
Glaſs upon the combuſtible matter which
began immediatly to ſend forth a Smoke
that quickly darkned the Receiver, but
notwithſtanding all our care and diligence
the externall Aire got in ſo faſt that after
diverſe tryals we were fayne to leave off
the Experiment in that Glaſſe and induc'd
to make tryall of it in our great Re
ceiver.
& carefully cloſing the Veſſel we brought
it to a Window at which the Sun, not very
faire from the Meridian, ſhone in very free
ly: then drawing out the Aire with ſpeed
united the Sun-beames with a burning
Glaſs upon the combuſtible matter which
began immediatly to ſend forth a Smoke
that quickly darkned the Receiver, but
notwithſtanding all our care and diligence
the externall Aire got in ſo faſt that after
diverſe tryals we were fayne to leave off
the Experiment in that Glaſſe and induc'd
to make tryall of it in our great Re
ceiver.
Haveing then after ſome difficulty
lodg'd the combuſtible matter in the ca
vity of this Veſſell in ſuch manner as that
it was almoſt contiguous to that ſide
thereof that was next the Sun, we did en
deavor with a pretty large burning Glaſs
to kindle it, but found, as we fear'd,
That by reaſon of the thickneſs of the
Glaſs, (which was alſo of a leſs pure and
leſs Diaphanous matter then the o
ther) the Sun-beams thrown in by the
burning Glaſs, were in their paſſage
ſo Diſlocated and Scattered (not now to
mention thoſe many that being reflected,
lodg'd the combuſtible matter in the ca
vity of this Veſſell in ſuch manner as that
it was almoſt contiguous to that ſide
thereof that was next the Sun, we did en
deavor with a pretty large burning Glaſs
to kindle it, but found, as we fear'd,
That by reaſon of the thickneſs of the
Glaſs, (which was alſo of a leſs pure and
leſs Diaphanous matter then the o
ther) the Sun-beams thrown in by the
burning Glaſs, were in their paſſage
ſo Diſlocated and Scattered (not now to
mention thoſe many that being reflected,