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May 21. 1672. Trin. Coll.
r
Tis now more then a fortnight since in answer to r
May 2d, I returned you some considerations on M. Cassegrains
designe for refining e&r
when my anr Hooks & Father Pardies Objections should
be printed, the names of the Objectors, especially if they desired, might
be omitted; I told you that it was indifferent to me whether they
were printed th
in the matter of those objections without respect to their persons.
But yet I understood not rr Hooks
name, if because the contents would discover their Author unlesse
the greatest
new Method thoute
in his Micrographia. And then they would in effect become
new objections & reque
And I know not whether I should dissatisfy them that expect my
answer to these that are already sent to me.
But yet upon the receipt of r
those things chare already writ I intended, & have determined to
send you alone a part of what I prepared, as I told you, to accom
pany my Answer; for ech
subject of this discourse is the Phænomena of Plated Bodies, concerning ch
thicknesses they reflect or transmit the rays indued th
colours, & then consider the relation chs
Plates have to e
understanding of the cases of their colours also. And this I purpose
to send becise
light, being a declaration of the different reflectibility of the seve
rall sorts of rays, as that was of their different refrangibility.
I onely expect r
conteine this Subject. In the meane time I restr
r
I. Newton
These
To Henry Oldenburg Es
at his house about the middle
of the old Pall-Maile in Westminster
London.
2
Answ. May 23.
Answ Wrote again May june,
and pressed His Answ. to Hook
putting him in mind of
miss and desiring to acknow
ledge tardies Candid return.