National Geographic : 1913 Aug
Photo byS.G.Wehrli -;: CROSSING A CREVASSE "In 1864 a porter named Coutlet, while descending with a party, fell into a crevasse. Two intrepid fellow-guides were lowered by ropes to a distance of go feet; but, owing to the suffocating air, could descend no further. They lowered a bottle a hundred feet further, but without touch ing bottom; and so the body of their companion was never found. Of all the dangers on Mont Blanc, that of the crevasse isthe commonest" (see page 885).