Observations During The Mission
- Ulloa and Juan visited the architectural Inca complex in San Agustin de Callo and subsequently wrote a descriptive document of what they observed at the ruins. Ulloa made a drawing of the ruins.
- The scientists witnessed two eruptions of the Cotopaxi volcano in 1743 and 1744.
Expedition members first came across rubber tapping (and thus rubber), the identification of the correct types of cinchona tree that produce the active form of quinine (anti-malarial agent) and the development of what became the metric system for units of measure.
Read more about this topic: French Geodesic Mission
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