[Illustration: Point of Alpenstock] Respecting the size of the alpenstock, let it be remarked that it may be nearly useless if it be too long or too short. It should always be shorter than the person who carries it, but it may be any length you like between three-fifths of your height and your extreme altitude. It should be made of ash, of the very best quality; and should support your weight upon its centre when it is suspended at its two ends. Unless shod with an iron point it can scarcely be termed an alpenstock, and the nature of the point is of some importance. The kind I prefer is shown in the annexed illustration. It has a long tang running into the wood, is supported by a rivetted collar, and its termination is extremely sharp. With a point of this description steps can be made in ice almost as readily as with an axe. A volume might be written upon the use of the alpenstock. Its principal use is as a third leg, to extend one’s base line; and when the beginner gets this well into his head he finds the implement of extraordinary value. In these latter times the pure and simple alpenstock has gone out of fashion, and mountaineers now almost universally carry a stick with a point at one end and an axe-head at the other. A moveable axe-head is still a desideratum. There is a pick-axe made at Birmingham with a moveable head which is better than any other kind that I have seen, but the head is too clumsy to be held in the hand, and various improvements will have to be effected in it before it will be fit for use in mountaineering. Still, its principle appears to me to be capable of adaptation, and on that account I have introduced it here. [Illustration: Birmingham pick-axe with moveable head] [Illustration: Russian furnace]