Falling forward hard, my hands struck the walls of the chasm, my arms were twisted behind me, and instantly both shoulders were dislocated. With my paralyzed arms flopping helplessly above my head, I slid swiftly down the narrow chasm. Instinctively I flattened down on the sliding gravel, digging my chin and toes into it to check my descent; but not until my feet hung out over the edge of the cliff did I feel that I had stopped. Even then I dared not breathe or stir, so precarious was my hold on that treacherous shale. Every moment I seemed to be slipping inch by inch to the point when all would give way and I would go whirling down to the glacier.
After the first wild moment of panic when I felt myself falling, I do not remember any sense of fear. But I know what it is to have a thousand thoughts flash through the
