Experiment V.
And now I speak of Camphire, it puts me in mind of adding this Experiment, That, though as I said in Clos’d Glasses, I could not Denigrate it by Heat, but it would Sublime to the sides and top of the Glass, as it was before, yet not only it will, being set on fire in the Free Air, send forth a Copious smoak, but having purposely upon some of it that was Flaming, clapt a Large Glass, almost in the form of a Hive, (but more Slender only) with a Hole at the top, (which I caus’d to be made to trye Experiments of Fire and Flame in) it continued so long burning that it Lin’d all the Inside of the Glass with a Soot as Black as Ink, and so Copious, that the Closeness of the Vessel consider’d, almost all that part of the White Camphire that did take Fire, seem’d to have been chang’d into that deep Black Substance.