On leaving Brieg the road began to ascend with a very slight incline, winding around in an intricate sort of way, sometimes crossing deep gullies, at other times piercing the hillside in long dark tunnels; but amidst all these windings ever ascending, so that every step took them higher and higher above the little valley where Brieg lay. The party saw also that every step brought them steadily nearer to the line of snow; and at length they found the...