href="@public@vhost@g@gutenberg@html@files@14504@[email protected]#Page_46" class="pginternal" tag="{http://www.w3.org/1999/xhtml}a">46, 47, 48, 49.) and several Conclusions and Corollaries drawn from it about the Nature of Blackness and Black Bodies (50, 51, 52.) and about the Asperities of several other Colour'd Bodies (53.) And from these, and some premis'd Considerations, are propos'd some Conjectures; That the reason of the several Phænomena of Colours, afterwards to be met with, depends upon the Disposition of the Seen parts of the Object (54.) That Liquors may alter the Colours of each other, and of other Bodies, first by their Insinuating themselves into the Pores, and filling them, whence the Asperity of the Surface of a Body becomes alter'd, explicated with some Instances (55, 56.) Next by removing those Bodies, which before hindred the appearance of the Genuine Colour, confirm'd by several examples (57) Thirdly, by making a Fissure or Separation either in the Contiguous or Continued Particles of a Body (58.) Fourthly, by a Union or Conjunction of the formerly separated Particles; Illustrated with divers Instances of precipitated Bodies (59.) Fifthly, by Dislocating the parts, and putting them both into other Orders and Postures, which is Illustrated with Instances (60, 61.) Sixthly, by Motion, which is explain'd (62.) And lastly, and chiefly, by the Union of the Saline Bodies, with the Superficial parts of another Body, whereby both their Bigness and Shape must necessarily be alter'd (63, 64.) Explain'd by Experiments (65, 66.) That the Colour of Bodies may be Chang'd by the concurrence of two or more of these ways (67.) And besides all these, Eight Reflective causes of Colours, there may be in Transparent Bodies several Refractive (68, 69) Why the Author thinks the Nature of Colours deserves yet a further Inquiry (69.) First for that the little Motes of Dust exhibited very lovely Colours in a darkned Room, whilst in a convenient posture to the Eye, which in other Postures and Lights they did not (70.) And that though the smaller Parts of some Colour'd Bodies are Transparent, yet of others they are not, so that the first Doubt's, whether the Superficial parts create those Colours, and the second, whether there be any Refraction at all in the later (71, 72, 73.) A famous Controversie among Philosophers, about the Nature of Colour decided. (74. 75.)

Chap. 4. The controversie stated about Real and Emphatical Colours (75, 76.) That the great Disparity between them seems to be, partly their Duration in the same state, and partly, that Genuine Colours are produc'd in Opacous Bodies by Reflection, and Emphatical in Transparent by Refraction (78.) but that this is not to be taken in too large a Sense, the Cautionary instance of Froth is alleged and insisted on (78, public@vhost@g@gutenberg@html@files@14504@[email protected]#Page_79" class="pginternal"