SECT. I.
ARTIC.
- 1 THe Connection of this to the immediately precedent Chapter.
- ibid.
- 2 Why the Author deduceth the 4 First Qualities, not from the 4 vulgar Elements; but from the 3 Proprieties of Atoms.
- ibid
- 3 The Nature of Heat is to be conceived from its General Effect; viz. the Penetration, Dis∣cussion, and Dissolution of the Bodies con∣crete.
- ibid.
- 4 Heat defined as no Immaterial, but a Substan∣tial Quality.
- 294
- 5 Why such Atoms, as are comparated to produce Heat, are to be Named the Atoms of Heat: and such Concretions, as harbor them, are to be called Hot, either Actually, or Potentially.
- ibid.
- 6 The 3 necessary Proprieties of the Atoms of Heat.
- ibid.
- 7 That the Atoms of Heat are capable of Ex∣pedition or deliverance from Concretions, Two ways; viz. by Evocation and Motion.
- 296
- 8 An Unctuous matter, the chief Seminary of the Atoms of Heat: and why.
- 297
- 9 Among Vnctuous Concretions, Why some are more easily inflammable than others.
- 298
- 10 A CONSECTAR••. That Rarefacti••n is the proper Effect of Heat
- ibid
- 11 PROBLEM 1. Why the bottom of a Cal∣dron, wherein Water i•• boyling, may be touched by the hand of a man, without burning it: Sol.
- 299
- 12 PROBLEM 2. Why Lime becomes ardent upon the affusion of 〈◊〉〈◊〉. Sol.
- 300
- 13 PROBLEM 3 Why the Heat of Lime burning is more vehement, than the Heat of a∣ny Flame whatever. Sol.
- ibid.
- 14 PROBLEM 4. Why boyling Oyl scalds more vehemently, then boyling Water. Sol.
- 301
- 15 PROBLEM 5. Why Metals, melted or made red hod, burn more violent than the Fire, that melteth or heateth them. Sol.
- ibid.
- 16 CONSECTARY. That, as the degrees of Heat, so those of 〈◊〉〈◊〉 are innumerably va∣rious.
- ibid.
- 17 That to the Calefaction, Combustion, or▪ In∣flammation of a body by fire, is required a cer∣tain space of time; and that the space is great∣er or less, according to the paucity, or abun∣dance of the igneous Atoms invading the body objected; and more or less of aptitude in the contexture thereof to admit them.
- 30••
- 18 Flame more or less Durable, for various re∣spects.
- 303
- 19 CONSECTARY. 3. That the immediate and genuine Effect of Heat, is the Disgregati∣on of all bodies, as well Homogeneous, as Hete∣rogeneous: and that the Congregation of Ho∣mogeneous Natures, is onely an Accidental Effect of Heat; contrary to Aristotle.
- 305