Especially since having carelessly laid
by the loose Papers, for several years after they were written, when I came
to put them together to dispatch them to the Press, I found some of those I
reckon'd upon, to be very unseasonably wanting. And to make any great
change in the order of the rest, was more than the Printers importunity,
and that, of my own avocations (and perhaps also considerabler
solicitations) would permit. But though some few preambles of the
particular Experiments might have (perchance) been spar'd, or shorten'd, if
I had had all my Papers under my View at once; Yet in the most of those
Introductory passages, the Reader will (I hope) find hints, or
Advertisements, as well as Transitions. If I sometimes seem to insist long
upon the circumstances of a Tryall, I hope I shall be easily excused by
those that both know, how nice divers experiments of Colours are, and
consider that I was not barely to _relate_ them, but so as to teach a young
Gentleman to make them. And if I was not sollicitous, to make a nicer
division of the whole Treatise, than into three parts, whereof the One
contains some Considerations about Colours in general. The Other exhibits a
specimen of an Account of particular Colours, Exemplifi'd in Whiteness and
Blackness.
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