After waiting for an hour we saw that our pirogue had safely crossed the raudal. We loaded our instruments and provisions and left the Guahibo rock. We began a journey that was quite dangerous. Above the cataract the river is some 800 toises wide and must be crossed obliquely at the point where the waters start rushing towards the fall. The men had been rowing for over twenty minutes when the pilot said that instead of advancing we were drifting back to the falls. Then there was a storm and heavy rain fell. Those anxious moments seemed to last for ever. The Indians whisper as they always do when in danger; but they rowed very hard and we reached the port of Maypures by nightfall.

We left finally on the 22nd of September, with four mules carrying our instruments and plants. Leaving the Caripe valley we first crossed a chain of hills running north-east from the convent. The road was uphill across a wide savannah towards the tableland of Guardia de San Agustín. We waited there for the Indian who carried our barometer. We stood at 533 toises above sea-level. The savannahs, or natural grasslands, excellent pasture for the monastery cows, were totally devoid of trees and shrubs. It is the kingdom of the monocotyledonous plants, with only a few maguey (Agave americana), whose flowers rise some 26 feet above the grass. On the high tableland of Guardia we felt we had been carried to an ancient lake flattened by the prolonged effect of the waters. You think you can recognize the curves of the ancient shore, the prominent tongues of land, the steep cliffs forming islands. Even the distribution of flora seems to refer to that primitive state. The bottom of the basin is a savannah, while its edges are covered with tall trees. It is sad that a place so favored by its climate, and fit for wheat, should be totally uninhabited.