On the extreme right--and rather below us--is the nearly level top of the Low Man; while not far from where broken cliffs lead up to the higher rock a curious natural post standing on the ridge marks the point from which a small deep channel is seen to come down towards _Walker's Gully_. This channel is of small importance, except that high up on the southern bank of it the glacier markings are most distinctly to be seen. The channel itself soon curves more towards the north and plunges over the fearful cliff which faces the Liza, forming the key to the great climb on that face. From the foot of _Jordan Gap_ a broad smooth slope of rock runs horizontally along the face of the High Man, giving to it somewhat the formation of the 'pent-house wall' of a tennis court. The steepness of the scree, which runs down from left to right before our feet, makes the drop from this slope much greater at the Low Man end; but it will give no false idea of this side to say that, roughly speaking, the cliff is broken into three fairly equal portions, of about 60 ft. each, namely, a vertical wall above, connected with a steep and rugged part below by a smooth stretch sloping at an angle not far short of 40 degrees. The importance of this 'pent-house' is very great; for, as it gives an easy passage right across this face of the rock, every climb which is possible from below may be cut into from the side, and thus more than half the labour of the ascent is saved. Indeed, any mountain which allows its entire front to be traversed in this way by a passable ledge exposes every weak point in so reckless a manner that the attack becomes marvellously simplified. Lastly should be noticed two rough curtains of rock which run down from the top of the Stone near the centre, and enclose between them what is called the _Great Chimney_. This chimney is the key to the climb on this side. The curtain on the south of it is the only one which is at all complete, and as it forms a kind of _arête_ running up to the summit, it is known indifferently by either name--the _Curtain_ or the _Arête_.