This document discusses the history and development of topographic instruments. It describes how early topographic instruments were improved over time through the addition of new components like telescopic sights and angular measurements, becoming more accurate. These developments led to topographic instruments being widely used in Europe and North America in the late 18th century for tasks like surveying land boundaries and creating topographic maps. The document also references several early innovators and inventors that were influential in advancing topographic instrumentation like William Roy and Edmund Gunter.
Cetemin explotacion minas practica de topografia general
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