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Keywords:
ECONOMY,
USE,
PLANE,
TABLES,
TOPOGRAPHY,
SURVEYING,
SURVEYS,
INSTRUMENTS,
INSTRUMENTATION,
METHODS,
TRIANGULATION,
TRIGONOMETRY,
MAPS,
ALIDADES,
THEODOLITES,
TELESCOPES,
ACCURACY,
GEOGRAPHY,
INDIA,
ASIA
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© Thomas Telford and ICE
1888
