1time then another, we are not yet pro
vided of any better Anſwer, then this
general one, That the Air about us,
and much more that within the Receiver,
may be much alter'd by ſuch cauſes as few
are aware of: For, not to repeat thoſe
probable Arguments of this Aſſertion
which we have occaſionally mention'd
here and there in the former part of this
Epiſtle, we will here ſet down two or
three Inſtances to verifie the ſame Propo
ſition. Firſt, I finde that the Learned
Foſephus Acoſta, among other Judicious
Obſervations he made in America, hath
this concerning the Effects of ſome
Winds; There are (ſays he) Winds which
naturally trouble the Water of the Sea, and
make it green, and black; others, clear as
Cryſtal. Next, we have obſerv'd, That
though we conveyd into the Receiver our
Scales, and the Pendula formerly men
tion'd, clean and bright; yet after the Re
ceiver had been empty'd, and the Air let in
again, the gloſs or luſtre both of the one,
and of the other, appear'd tarniſh'd by a
beginning ruſt. And in the laſt place, we
will ſubjoyn an Obſervation we made
ſome Years ago, which hath been heard
of by divers Ingenious Men, and ſeen
vided of any better Anſwer, then this
general one, That the Air about us,
and much more that within the Receiver,
may be much alter'd by ſuch cauſes as few
are aware of: For, not to repeat thoſe
probable Arguments of this Aſſertion
which we have occaſionally mention'd
here and there in the former part of this
Epiſtle, we will here ſet down two or
three Inſtances to verifie the ſame Propo
ſition. Firſt, I finde that the Learned
Foſephus Acoſta, among other Judicious
Obſervations he made in America, hath
this concerning the Effects of ſome
Winds; There are (ſays he) Winds which
naturally trouble the Water of the Sea, and
make it green, and black; others, clear as
Cryſtal. Next, we have obſerv'd, That
though we conveyd into the Receiver our
Scales, and the Pendula formerly men
tion'd, clean and bright; yet after the Re
ceiver had been empty'd, and the Air let in
again, the gloſs or luſtre both of the one,
and of the other, appear'd tarniſh'd by a
beginning ruſt. And in the laſt place, we
will ſubjoyn an Obſervation we made
ſome Years ago, which hath been heard
of by divers Ingenious Men, and ſeen
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