of lithosphere surface, [29];

shadow, [203];

spheroidal, [150], [151];

two contrasted processes of, [149].

Wed (Wadi), [212], [213], [214].

Weed, W. H., cited, [196], [441], [447].

West Indies, seismotectonic lines of, [88].

Wheeler, W. H., cited, [244].

Whirlpool basin, at Niagara, [359];

excavation of, [360].