The Technique of Travel : Page 122

Edging.—Proper use of edges provides a simple means of directly ascending short, narrow avenues. Both skis are edged in the same direction—to the right, for instance, by bending both knees forward and to the right. As a skier knows from his herringbone and many of his unsuccessful turns, skis edged too far will not run; they will, however, climb. Direction of edging should be changed from time to time so that the ankles and knees are not always bent in the same direction. This method of climbing develops the leg muscles required for chris-tianias. The harder the edging, the steeper the slope that can be climbed.