Pitted plains, [314], [407], [408].

Pittier, H., cited, [405].

Plains, flood, [178];

coastal, [246];

outwash, [280], [281];

pitted, [314], [407], [408].

Platform, continental, [18], [19];

oceanic, [18], [19].

Playa lakes, [422].

Playfair, Sir John, cited, [178].