Projected or Possible Geographical Changes by Man

Chapter VI.

CUTTING OF MARINE ISTHMUSES—THE SUEZ CANAL—CANAL ACROSS ISTHMUS OF DARIEN—CANALS TO THE DEAD SEA—MARITIME CANALS IN GREECE—CANAL OF SAROS—CAPE COD CANAL—DIVERSION OF THE NILE—CHANGES IN THE CASPIAN—IMPROVEMENTS IN NORTH AMERICAN HYDROGRAPHY—DIVERSION OF RHINE—DRAINING OF THE ZUIDERZEE—WATERS OF THE KARST—SUBTERRANEAN WATERS OF GREECE—SOIL BELOW ROCK—COVERING ROCKS WITH EARTH—WADIES OF ARABIA PETRÆA—INCIDENTAL EFFECTS OF HUMAN ACTION—RESISTANCE TO GREAT NATURAL FORCES—EFFECTS OF MINING—ESPY'S THEORIES—RIVER SEDIMENT—NOTHING SMALL IN NATURE.