We struck a faint trail leading to the foot-hills where the barren ridges overlooked the sparkling sea--a vast cerulian expanse without a single fleck of a white sail. The trail led through the great fields of buffalo-grass, out of which gigantic solitary trees shot up a hundred feet into the air. There were no signs of life, only the vultures in the topmost branches of the trees. Wild horses, taking flight at our approach, stampeded for the forest. Nothing could be seen in the tall grass. Even in our saddles it was higher than our heads. The trail became more rugged as we entered the big belt of forest on the foot-hills. A wild hog bolted for the jungle with distressed grunts. It was a world of white vines falling from the lofty branches of the trees. The animal life in some of the great trees was wonderful. The branches were divided into zones, wherein each class of bird or reptile had its habitat. Around the base were galleries of white ants. Flying lizards from the gnarled trunk skated through the air. Green reptiles crawled along the horizontal branches. Parrakeets, a colony of saucy green and red balls, screamed and protested from the lower zones. An agile monkey swung from one of the long sweeping vines, and scolded at us from another tree. Bats, owls, and crows inhabited the upper regions, while the buzzards perched like evil omens in the topmost boughs. Just when our throats were parched from lack of water, we discovered a small mountain torrent gushing over the rocks and bowlders of the rugged slope. Leaning across one of the large bowlders, from a dark pool where the sunlight never penetrated, we scooped up refreshing hatfuls of the ice-cold water. Here was the world as God first found it, when he said that it was good. It was impressive and mysterious. It seemed to wrap us in a mystic spell. What wonder that the pagan tribes that roamed through the interior had peopled it with gods and spirits of the chase, and that the trees and rivers seemed to them the spirits of the good or evil deities? The note of the wood-pigeon sounded on the right. The padre smiled as he looked up. "That is a favorable omen," he declared. "In the religion of the river-dwellers, the Bagobos, when the wood-dove calls, it is the voice of God. Hark! It is coming from the right. It is a favorable sign, and we can go upon our journey undisturbed. But had we heard it on the left, it would have been to us a warning to turn back. Our journey then would have been unpropitious, and we would have been afraid to go on farther."