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]

[CHAPTER VIII]

AETHER AND ELECTRICITY

ART.[79].ELECTRICITY, A MODE OF MOTION [162]
"[ 80].ELECTRIC FIELD [166]
"[ 81].ELECTRIC INDUCTION [174]
"[ 82].ELECTRIC ENERGY [179]
"[ 83].ELECTRIC RADIATION [182]
"[ 84].LAW OF INVERSE SQUARES [184]
"[ 85].SECOND LAW OF ELECTRICITY [186]

[CHAPTER IX]

AETHER AND MAGNETISM

ART.[86].ELECTRO-MAGNETISM [192]
"[87].THE EARTH A MAGNET [195]
"[88].THE SUN AN ELECTRO-MAGNET [199]
"[89].FARADAY'S LINES OF FORCE [203]
"[90].TERRESTRIAL MAGNETISM [206]
"[91].SOLAR MAGNETS [211]
"[92].CAUSE OF ROTATION OF THE EARTH ON ITS AXIS [219]
"[93].VORTEX MOTION [221]
"[94].RELATIVE MOTION OF AETHER AND MATTER [224]
"[95].VIBRATIONS IN THE ELECTRO-MAGNETIC THEORY OF LIGHT [228]

[CHAPTER X]

AETHER AND NEWTON'S LAWS OF MOTION

ART.[96].AETHER AND CENTRIFUGAL FORCE [232]
"[ 97].AETHER AND CENTRIPETAL FORCE [236]
"[ 98].AETHER AND NEWTON'S FIRST LAW OF MOTION [239]
"[ 99].AETHER AND NEWTON'S SECOND LAW OF MOTION [244]
"[ 100].AETHER AND NEWTON'S THIRD LAW OF MOTION [251]
"[ 101].WHY PLANETS REVOLVE FROM WEST TO EAST [253]