XV111 GENERAL CONTENTS. 



Page 

 CHAP. III. The Barometer. Theory of Dew, Mists, Fogs, 



and of the Aurora Borealis 348370 



CHAP. IV. Theory of Voltaic Electricity, and of Subterra- 

 nean or Volcanic Forces 37 1 417 



CHAP. V. Hypothesis of two Electric Fluids examined. 



Relations of Caloric and Electricity 418 454 



BOOK IV. 



CHAP. I. Life History of ancient and modern Opinions 



concerning it 455 506 



CHAP. II. Ultimate Elements of organized Bodies. Why 

 they unite into ternary and quaternary Compounds, so 

 as to form living Tissues. Spontaneous Generation. 

 Theory of Animal Heat, as connected with Respiration. 



507559 



CHAP. III. Influence of Respiration on the Temperature 

 and vital Energy of different Animals. Cause of the 

 Heart's Action, and of the Capillary Circulation 560 623 



CHAP. IV. Theory of Digestion, Sanguification, Coagula- 

 tion, Secretion, Nutrition, Muscular Motion, Sensation, 

 and of Disease. Analogies of the Macrocosm and 

 Microcosm . . 624 689 



BOOK V. 



CHAP. I. Influence of Climate on the physical, intellectual, 



and moral Character of the Human Race 690 728 



CHAP. II. Origin of Races, Nations. Languages, and My- 

 thologies. Unity of the Human Race, and of Organi- 

 zation. Longevity of Nations 729 778 



