CONTENTS. 



[Within the last few years, several works have been published 

 in this Country on subjects more or less closely approaching to 

 that here treated. It may, therefore, be not superfluous to say 

 that the Author of the following pages believes that he has not 

 borrowed any of his views or illustrations from recent English 

 writers on Natural Theology.] 



Page 



INTRODUCTION. 



CHAP. I. Object of the Present Treatise 1 



II. On Laws of Nature 6 



III. Mutual Adaptation of Laws of Nature 11 



IV. Division of the Subject 14 



BOOK I. TERRESTRIAL ADAPTATIONS 17 



CHAP. I. The Length of the Year 21 



II. The Length of the Day 33 



III. The Mass of the Earth 42 



IV. The Magnitude of the Ocean 52 



V. The Magnitude of the Atmosphere 54 



VI. The Constancy and Variety of Climates . . 55 

 VII. The Variety of Organization corresponding 



to the Variety of Climate 62 



VIII. The Constituents of Climate 75 



The Laws of Heat with respect to the Earth 76 



IX. The Laws of Heat with respect to Water . . 80 



