Viewing page 435 of 504

This transcription has been completed. Contact us with corrections.

(242
the intermediate states and conditions of one and the same elementary fluid. This contradicts [[underlined]] Jones [[/underlined]]'s opinion, p. 160, 161, 162. And D[[superscript]] r [[/superscript]]. Hill's in his Thoughts on GOD and Nature p. 322 to 344. See also Hillary's Laws of the motion of Fire. D[[superscript]] r [[/superscript]]. Desaguliers Philosophy Vol. II. p. 367 to 370. Hale's Vegetable Statics Vol. I. p. 278 to 280. also p. 287, 288 and Vol. II. p. 318. Moreover Vol. I. p. 35 to 37. D[[superscript]] r [[/superscript]]. Desagulier's Gravesande's Philosophy in 4. [[superscript]] to [[/superscript]] Vol. I. p 63, to 95. Also on flame Vol. II. p. 87, 88. Or in the 8. [[superscript]] vo [[/superscript]] Edit. 1737. Vol. II. p. 1 to 18. Rohaulti Physica Part III. Cap. 9. Art. 2 ad 23. et seq. __ Des Cartes Philos. __ Crooker's Dictionary under the word FIRE. Philos. Trans. &c. &c. __ Nature Display'd, 8. [[superscript]] vo [[/superscript]] Edit. 1739. Vol. IV. Dialog. XI. p. 147 to 204. Also Vol. III. p. 210, 226, 430, 431, 432, 433. Boahaave & Chymistery.

[[left margin]] Other thoughts revoking the former on the subject of Fire. [[/left margin]]
Aug[[superscript]] st [[/superscript]] 30, 1769. I cannot [[insertion]] ^ admit [[/superscript]] my Theory of Fire, as above. I was drawn into the mistake of making it a Substance, and even a fluid [[underlined]] per se [[/underlined]], by others asserting it to be so: nor have I ever met with any author who[[strikethrough]] se [[/strikethrough]] expresses the least hint to the contrary. Yet I must notwithstanding deviate from them all, even from Hutchinson and [[insertion]] ^ all [[/insertion]] his followers, [[strikethrough]] to [[/strikethrough]] [[insertion]] ^ and [[/insertion]] assert that no other foundation or principle [[strikethrough]] of Natural Philosophy should [[/strikethrough]] ought to be admitted into Natural Philosophy, than these two,  Matter, and Motion. as laid down by D[[superscript]] r [[/superscript]]. Wilson in his excellent treatise, on [[underlined]] the laws of Matter and Material Motion. [[/underlined]] in consequence of which Fire itself is nothing but a sensible quality of certain matter put into a very rapid motion. [[insertion]] ^ Or [[/insertion]] [[strikethrough]] A less degree of motion [[/strikethrough]]

I. This matter from the most [[strikethrough]] rapid [[/strikethrough]] violent & rapid motion down to a certain [[strikethrough]] and [[/strikethrough]] less degree of it, is [[insertion]] ^ jointly [[/insertion]] endued with the [[insertion]] ^ several [[/insertion]] qualities or properties of heating, burning, [[strikethrough]] and [[/strikethrough]] shining, penetraing into [[insertion]] the pores of [[/insertion]] all other bodies, [[insertion]] ^ (*) [[/insertion]]
[[left margin]] (*) dissipating some, and converting [[strikethrough]] others [[/strikethrough]] them into ashes; liquifying some; [[strikethrough]] and [[/strikethrough]] calcining others; [[/left margin]]
&c. which hath hitherto been understood as a fluid [[underlined]] per se [[/underlined]], and expressed by [[insertion]] ^ the [[/insertion]] one word [[underlined]] Fire [[/underlined]]; but I would call it [[underlined]] Fire in Orb [[/underlined]]. [[strikethrough]] As this is not the natural state of this matter, it must undergo various degrees of motion before it arrives at the swiftest, and consequently be endued with different qualities, p as it passes from one degree of motion to another; and in fact we find [[insertion]] ^ it so, [[/insertion]] this to be the case from the different degrees of [[/strikethrough]]

Transcription Notes:
@siobhanleachman - edited.