THE POLAR PLANIMETER

AND ITS USE IN

ENGINEERING CALCULATIONS

TOGETHER WITH

TABLES, DIAGRAMS AND FACTORS

FOR THE IMMEDIATE ADJUSTMENT OF THE INSTRUMENT FOR THE SOLUTION
OF PROBLEMS INVOLVING:

THE MEASUREMENT OF LARGE AND SMALL AREAS,

AVERAGE OR MEAN HEIGHT OF INDICATOR AND SIMILAR DIAGRAMS,

DETERMINATION OF CENTRE OF GRAVITY,

MEASUREMENT OF VOLUMES OF RAILWAY AND CANAL EXCAVATION,

VOLUMES IN GRADING AND DREDGING OPERATIONS,

VOLUMES IN RESERVOIR AND SIMILAR DESIGN AND CONSTRUCTION,

QUANTITIES AND VOLUMES OF BRICKWORK,

WEIGHTS OF IRON AND OTHER METALS IN CONSTRUCTION,

MEASUREMENT OF DISPLACEMENT DIAGRAMS,

ETC., ETC., ETC.

By J. Y. WHEATLEY, C. E.

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PUBLISHED BY

KEUFFEL & ESSER CO.

NEW YORK.