large & vivid Flame that was very yellow, & lasted for a while; but being then blown out; did not rekindle of it self, nor by holding [ 'the' deleted] it so that the Fumes reach'd to an actual fire. Wherefore for greater security, we [ 'repe' deleted] reiterated the Experiment carefully, but observ'd little that was peculiar in it, save that when the Flame broke forth of it self, it did it with a surprising Noise, equal, by our guess, to that which half a pound, or a greater quantity, of Gunpowder kindled in the free air, would have produc'd.

To try whether Cotton were necessary to our way of producing Flame, [ 'I' deleted] as we presum'd a Body analogous to it, thô not, as the Chymists speak, of the Vegetable, but of the Animal Kingdom, would not be as proper we took about the quantity of a Walnut of black Wool (not so much because it is thought of a hotter nature, but because we had no other at hand) & having well moisten'd it with Chymical Oyl of Carvy, we put to it some of our Vitriolic Spirit of Nitre, & presently had (what we look'd for) <such> a copious & blazing [ 'yellow' deleted] Flame of a yellow Colour, that this <Accension>[replacing 'Experiment'] seem'd to be <somewhat> more easily produc'd than in any of the former Experiments.

[I have several times thought, that the Accension produc'd by the mixture of Bodies Cold as to touch, depended Mainly (for I do not say Only) upon this; That by the Mixture of these Bodies there is produc'd such a change of Texture, & particularly as to Pores, that either the more Spirituous & active Ingredients are set at Liberty & <powerfully> Excited, or the <translucent> æther is determin'd to excite in the Compound Body <such> a [ 'very' deleted] vehement & tumultuous Agitation of the minute parts, as is sufficient to put them into that State wherein we call the Aggregate of them Flame. This Opinion or Conjecture I thought fit to examine by some Tryals, wherein thô the chief Agent & most active Ingredient was still retain'd & made use of, yet <there should be a Change of>[replacing 'the'] one[altered from 'other'] or other <of the two remaining> Ingredients, but especially of that which is [ 'by most' deleted] commonly reputed by Chymists, & not by them alone, to be the proper Seat of Inflammability, if not the only Fuel of Fire. To make this Examen, I [ 'pitchd upon' deleted] thought fit to substitute Wooll to Cotton, & so to vary the Oyls I would imploy, that my choice should comprehend Inflammable Liquors of very differing sorts, & indeed of as many of those that then came into my thoughts, as I [ 'then could' deleted] had then [ 'at hand' deleted] within my power