sections of, [85].
Craters, mechanics of explosions in, [115].
Crater, volcanic, [95].
Credner, G. R., cited, [179].
Crescentic levee lakes, [416], [417].
Crestline, of an anticline, [42].
Crevasse, marginal, on mountain glaciers, [370].
Crevasses, in connection with river cut-offs, [164];
on glaciers, [391].