Seaquakes, [69];

distribution of, [70];

downward movement of sea floor during, [81];

number and magnitude of, [81].

Seasonal lakes, [189], [422].

Section, geological, [46], [47];

across mountain wall about desert, [212].

Sederholm, J. J., cited, [315].

Sedimentary rocks, [30];

of chemical precipitation, [464];