As we entered the jungle the barometer showed that we were gaining altitude. Here the tree trunks offered us an extraordinary view: a gramineous plant with verticillate branches (44) climbs like a liana to a height of 8 to 10 feet, forming garlands that cross our path and swing in the wind. At about three in the afternoon we stopped on a small plain known as Quetepe, some 190 toises above sea-level. A few buts stand by a spring whose water is known by the Indians to be fresh and healthy. We found the water delicious. Its temperature was only 22. while the air was 28.7°C.