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# Title: Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light (shelfmark Leibn. Marg. 193)
# Folio 3, page id 1677894601:0175
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1677894601&page=175
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 II.
When the Plate oFAir, by curnine the Prisms about
their common AXis, became (0 litele inclined to the in-
cident Ray5, that lome of them besan to be transinit.
tedque there arole in it many Aender ATCS oF C olOUES
irhrich at fixst ere Chaped almost like the Conchoid,
as you sec them delineated in the tirst Figure. And Fis. 1.
Or continuins the motion of the Prisms, thele Arcs in-
Crealed and bended more and more about the laid trans-
parent Spot, till they rvere completed into Circles or
Ringsincompassins it, and afterrards continually sre
more and more contracted.
These ArCSat their Ars appearance rere ot a violet
and blue Colour, and betreen them erere white AECS
OF Circles, Wrhich presentr br continuinu the motion ot
the Prisims became a little tinged in their inmard Limbs
rith red and vellon, and to their outmard Limbs the
blue ras adjacent. So chat che order ot these COIOurS
From the central dark Spoc, mas ac that time irhite,
blue, violet; black; red orange, vellow, Wrhite, blue,
violet, Dc. But the vellorr and red vere much fainter
than the blue and violet.
Themotion ot the Prisims about theis Axis being con-
tinued, these Colours contracted more and more, Crink-
ins torrards the whitenels on cither side ot ic until ther
Totalr vanistred intoit. And then the Circles in thole
Parts appeared black and wrhite, rithout any other CO-
lours intermixed. But by Further movins the Prisims
about, the Colours again emersed out ofthe irhitenets,
the riolet and blue as its inmard Limb, and at its out
A a 2
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