Pressure ridges, on pack ice, [286].
Prinz, cited, [14], [19], [54], [133], [148].
Processes by which rocks are formed, [30].
Profile, cut by waves on steep rocky shore, [236].
Profiles, character, [177], [318];
character, directly due to volcanic agencies, [145], [146];
character, coast, due to uplift or depression, [259];
character, of arid lands, [220];
character, of shore features, [243];
character, referable to mountain glaciers, [379];