Besides the historical narrative, there were works mainly geographical or topographical left by persons like Baeton and Diognetus, whom Alexander had employed (as Onyarcaral.) to survey the roads over which he passed.
Above sea level, the elevation of the Plaza de Bolivar, its topographical centre, being 3025 ft.
The limited knowledge which we possess of the original features of the ground within the area of the city makes a reconstruction of the topographical history of the latter a difficult task; and, as a natural result, many irreconcilable theories have been suggested.
His division of geography was into two parts - (i.) General or universal, dealing with the earth in general, and explaining its properties without regard to particular countries; and (ii.) Special or particular, dealing with each country in turn from the chorographical or topographical point of view.
The records preserved in each city were examined, topographical information was diligently collected, and the Jesuit fathers checked their triangulation by meridian altitudes of the sun and pole star and by a system of remeasurements.
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