Coquina, [35].

Cornish, Vaughan, cited, [211], [222], [244].

Corrasion, [162].

Corrosion, of rocks, [156].

Coulée lakes, [406].

Coves, [233], [234].

Cracks, earthquake, [74].

Crater, evolution of form of, [128].

Crater lakes, [405], [406].

Craterlets, [84];