LIGHT, A MODE OF MOTION
ART. 70. LIGHT, A MODE OF MOTION 122 " 71. TRANSVERSE VIBRATION OF LIGHT 130 " 72. REFLECTION AND REFRACTION 135 " 73. THE SOLAR SPECTRUM 139 " 74. DIRECTION OF A RAY OF LIGHT 144 " 75. INTENSITY OF LIGHT 145 " 76. VELOCITY OF LIGHT 148 " 77. DYNAMICAL VALUE OF LIGHT 150 " 78. ELECTRO-MAGNETIC THEORY OF LIGHT 155
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