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CONTENTS. 
SECTION VII. 
OF THE PROPORTIONS, AND THE CONSTRUCTION, OF THE PARTS OF STEAM 
ENGINES ......... 203 
SECTION VIII. 
OF EQUALIZING THE ACTION, REGULATING THE POWER, MEASURING THE 
USEFUL EFFECT, AND MANAGING THE STEAM ENGINE . . . 256 
SECTION IX. 
OF THE APPLICATION OF STEAM ENGINES TO DIFFERENT PURPOSES . . 274 
SECTION X. 
OF STEAM NAVIGATION . . . . . ’ . . . 288 
TABLES. 
TABLE I. OF THE PROPERTIES OF THE STEAM OF WATER OF DIF 
FERENT DEGREES OF ELASTIC FORCE .... 322 
TABLE II. OF THE PROPORTIONS OF SINGLE ACTING STEAM ENGINES 323 
TABLE III. OF THE PROPORTIONS OF DOUBLE ACTING STEAM ENGINES 324 325 
EXPLANATION OF THE PLATES ....... 327