e_ Chymists _that Sulphur_ Adust _is the cause of Blackness, and the
whole Matter is fully discuss'd and stated_ (from 176 to 184)
Part the Third.
_Concerning Promiscuous Experiments about Colours_.
Experiment the First.
_IN confirmation of a former Conjecture about the Generation of Colours
from diversity of Reflections are set down several Observations made in a
Darkned room_ (186, 187.)
Experiment _the second, That white Linnen seem'd Ting'd with the Red of
Silk plac'd near it in a light Room_ (188,189.)
Experiment _the third, Of the Trajection of Light through Colour'd Papers_
(189, 190.)
Experiment _the fourth, Observations of a Prism in a dark Room_ (191, 192.)
Experiment _the fifth, Of the Refracting and Reflecting Prismatical Colours
in a light Room_ (193.)
Experiment _the sixth, On the Vanishing of the_ Iris _of the Prism, upon
the access of a greater adventitious Light_ (194.)
Experiment _the seventh, Of the appearances of the same Colour'd Papers by
Candle-light_ (195, 196).
Experiment _the eighth, Of the Yellowness of the Flame of a Candle_ (197).
Experiment _the ninth, Of the Greenish Blew transparency of Leaf Gold_
(198).
Experiment _the tenth, Of the curious Tinctures afforded by_ Lignum
Nephriticum (from 199 to 203). _Several trials for the Investigation of the
Nature of it_ (from 204 to 206.) Kircher's _relation of this Wood set down,
and examin'd_ (from 206 to 212). _A Corollary on this tenth_ Experiment,
_shewing how it may be applicable for the Discovering, whether any Salt be
of an Acid, or a Sulphureous, and Alcalizate Nature_ (from 213 to 216).
_The eleventh_ Experiment, _Of certain pieces of Glass that afforded this
Variety of Colours; And of the way of so Tinging any Plate of Glass with
Silver_ (from 216 to 219).
_The twelfth_ Experiment, _Of the Mixing and Tempering of Painters
Pigments_ (219, 220, 221).
_The thirteenth_ Experiment, _Of compounding several Colours by Trajecting
the Sun-beams through Ting'd Glasses_ (from 221 to 224).
_The fourteenth_ Experiment, _Of the Compounding of Real and Phantastical
Colours, and the Results_ (224, 225, 226.) _as also the same of
Phantastical Colours_ (226, 227.)
_The fifteenth_ Experiment, _Of Varying the Trajected_ Iris _by a Colour'd
Prism_ (228, 229.)
_The sixteenth_ Experiment, _Of the Red fumes of Spirit of_ Nitre, _and,
the resembling Redness of the Horizontal Sun-beams_ (230, 231.)
_The seventeenth_ Exp
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