level, yet the high banks and the views of distant mountain-ranges or hills diversify the scenery, which has not the dull monotony of the lower Menam—a pleasing change, and one that beguiles our time and attention as the boats are slowly making their way toward the rapids; and seven or eight days' "poling" bring us to the entrance of the ravine at their foot.
After weeks of voyaging on a broad river and through a flat country, with a wide horizon always encircling us, how anomalous to be confronted by this rocky pass, through which we must thread our way up forty rapids to the equally level territory of Laos beyond it! As we enter the gorge from the bright sunlight a sombre shade closes over us, even "the shadow of a great rock in a weary land." Wild and grand beyond description are these cañons and falls of the Maping River, and far exceeding any portrayal are the lofty, majestic mountains through which the river cuts its way.
No scientific survey has ever been made of the incline of the river, neither accurate measurement of the height of its mountains. Missionaries have approximated the altitude of some of the cliffs that border the river at from eight hundred to fifteen hundred feet. The geology and flora of this region remain unclassified. In silent beauty they await the coming of one who may some day unlock their secrets.
