XIV CONTENTS. 



Page 



X. The Laws of Heat with respect to Air 96 



XI. The Laws of Electricity 110 



XII. The Laws of Magnetism 113 



XIII. The Properties of Light with regard to 



Vegetation 115 



XIV. Sound 117 



XV. The Atmosphere 125 



XVI. Light 128 



XVII. The Ether 138 



XVIII. Recapitulation 141 



BOOK II. COSMICAL ARRANGEMENTS 148 



CHAP. I. The Structure of the Solar System 150 



II. The Circular Orbits of the Planets round the 



Sun 154 



III. The Stability of the Solar System 159 



IV. The Sun in the Centre 169 



V. The Satellites 173 



VI. The Stability of the Ocean 177 



VII. The Nebular Hypothesis 181 



VIII. The Existence of a Resisting Medium in the 



Solar System 191 



IX. Mechanical Laws 210 



X. The Law of Gravitation 214 



XI. The Laws of Motion 231 



XII. Friction 238 



BOOK III. RELIGIOUS VIEWS 251 



CHAP. I. The Creator of the Physical World is the 



Governor of the Moral World 254 



II. On the Vastness of the Universe 268 



III. On Man's Place in the Universe 279 



IV. On the Impression produced by the Contem- 



plation of Laws of Nature ; or on the 

 Conviction that Law Implies Mind .... 293 

 V. On Inductive Habits; or, on the Impres- 

 sion produced on Men's Minds by dis- 

 covering Laws of Nature 303 



