CONTENTS. 



SECTION I. 



AN ACCOUNT OF THE INVENTION AND PROGRESSIVE IMPROVEMENT OF THE 



STEAM ENGINE ........ 1 



SECTION II. 



OF THE NATURE AND PROPERTIES OF STEAM, ITS ELASTIC FORCE, EXPANSIVE 



FORCE, AND POWER OF MOTION . . . . . .47 



SECTION III. 



OF THE GENERATION AND CONDENSATION OF STEAM, AND THE APPARATUS 



FOR THOSE PURPOSES ....... 105 



SECTION IV. 



OF THE MECHANICAL POWER OF STEAM, AND THE NATURE, GENERAL PROPOR- 

 TIONS, AND CLASSIFICATION OF STEAM ENGINES .... 150 



SECTION V. 



OF THE CONSTRUCTION OF NONCONDENSING ENGINES .... 173 



SECTION VI. 



OF THE CONSTRUCTION OF CONDENSING ENGINES . . 184 



