Sandstone, [464].

Sand storms, [209].

Santa Catalina, [239], [257].

Sapper, K., cited, [111], [147], [148].

Sarasin, P. and F., cited, [248].

Sardeson, F. W., cited, [327], [339].

Saucer lakes, [415], [416].

Sawa Lake, of Persian desert, [199].

Scaling, [151].

Scape colks, [277].