AETHER
| ART. | [42]. | AETHER IS MATTER | [54] |
| " | [43]. | AETHER IS UNIVERSAL | [58] |
| " | [44]. | AETHER IS ATOMIC | [59] |
| " | [45]. | AETHER IS GRAVITATIVE | [64] |
| " | [46]. | AETHER POSSESSES DENSITY | [71] |
| " | [47]. | AETHER POSSESSES ELASTICITY | [74] |
| " | [48]. | AETHER POSSESSES INERTIA | [76] |
| " | [49]. | AETHER IS IMPRESSIBLE | [78] |
| " | [50]. | AETHER AND ITS MOTIONS | [80] |
[CHAPTER V]
ENERGY
| ART. | [51]. | ENERGY | [83] |
| " | [52]. | CONSERVATION OF ENERGY | [84] |
| " | [53]. | TRANSFORMATION OF ENERGY | [86] |
| " | [54]. | POTENTIAL ENERGY | [87] |
| " | [55]. | KINETIC ENERGY | [89] |
| " | [56]. | ENERGY AND MOTION | [91] |
| " | [57]. | CONSERVATION OF MOTION | [92] |
| " | [58]. | TRANSFORMATION OF MOTION | [93] |
| " | [59]. | MOTION AND WORK | [95] |
[CHAPTER VI]
HEAT, A MODE OF MOTION
| ART. | [60]. | HEAT, A MODE OF MOTION | [98] |
| " | [ 61]. | HEAT AND MATTER | [100] |
| " | [ 62]. | RADIATION AND ABSORPTION | [104] |
| " | [ 63]. | HEAT IS A REPULSIVE MOTION | [107] |
| " | [ 64]. | RADIANT HEAT | [109] |
| " | [ 65]. | DIRECTION OF A RAY OF HEAT | [111] |
| " | [ 66]. | LAW OF INVERSE SQUARES | [112] |
| " | [ 67]. | FIRST LAW OF THERMODYNAMICS | [114] |
| " | [ 68]. | SECOND LAW OF THERMODYNAMICS | [116] |
| " | [ 69]. | IDENTITY OF HEAT AND LIGHT | [119] |