Edinburgh New Philosophical Journal edinburghnewphil141861 Year: 1861 David Milne-Home on Ancient Glaciers. 47 usual limits, its sides would press against these debris and raise them into the form of an embankment similar to what now presented. Fig. l. The two lateral moraines in question would of course repre- sent two periods when the glacier had swelled laterally beyond usual limits. 4. Proceeded to near foot of glacier on east side, where a face of hard rock, almost perpendicular, and quite smooth, for about 80 feet in height and 60 or 70 in length. The ice of glacier is seen pressing
Edinburgh New Philosophical Journal edinburghnewphil141861 Year: 1861 David Milne-Home on Ancient Glaciers. 47 usual limits, its sides would press against these debris and raise them into the form of an embankment similar to what now presented. Fig. l. The two lateral moraines in question would of course repre- sent two periods when the glacier had swelled laterally beyond usual limits. 4. Proceeded to near foot of glacier on east side, where a face of hard rock, almost perpendicular, and quite smooth, for about 80 feet in height and 60 or 70 in length. The ice of glacier is seen pressing against lower part of this rocky face. Walked on the ice where it was in contact with rock, and also looked under glacier at several places where it was resting on the rocks forming the bottom of valley. Multitudes of hard blocks of stone between the ice and rocks, both at side and at bottom ; had no doubt that the smoothing of the perpendicular wall, though about 80 feet of it now exempt from glacier action, produced by glacier rubbing and pressing on rocks as it flowed northwards. Noticed several natural joints or cutters in this rocky face, alongwhich, as usual in such cases, portions of rock broken off, and which had originally formed little projections. In most instances these projections had been all smoothed down, so as to bring both sides of joint to one uniform surface. In some cases the projections remained, but only where these looked northwards, and had thus escaped the grinding action of the glacier.
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