Drawing from his pocket a sketch chart which he had already consulted several times during our passage up the river, he again studied it intently for several minutes, carefully comparing the configurations delineated upon it with our actual surroundings; then, apparently satisfied with the result, he refolded the paper, returned it to his pocket, and directed the coxswain to bear away a couple of points toward a projecting point--which we afterwards discovered to be the western extremity of an islet--on the far side of the river.
