Aether and Gravitation. William George Hooper
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 |
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 |
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. |