unexpected place the dreaded alarm is sounded that the bank is giving way and a crevasse impends. The water-soaked bank shows fissures and help is implored--bells are rung, fleet horsemen arouse the neighborhood, the people assemble and try to stop the break. But the crumbling levee soon gives way, and the swollen and muddy current pours through with a roar like Niagara, the waters spreading afar over the lowlands, and thus by reducing the stream-level bringing relief to the river, but converting the adjacent region for many miles into a turbid lake and ruining the crops. Below New Orleans, as the river is descended, the thick forest vegetation along the banks gradually disappears, giving place to vast expanses of marsh and isolated patches of fast land bearing stunted trees. The river banks grow less defined, and are finally lost in what appears to be an interminable marsh with many waterways. This leads to the delta, gradually built up from the sediment deposited by the river, and demonstrating the eternal conflict and gradual encroachment of the land upon the sea. Through the ages, this delta, steadily constructed by the river, has been protruded into the Gulf of Mexico, far beyond the general coast-line, and it is slowly advancing year after year from the accumulated deposits. The delta divides into the various channels or "passes" by which the waters seek the sea. These are at first bordered by shore-lines of mud, which lower down dissolve into consecutive lines of coarse grass growing from beneath the watery surface, and then they are discernible only to the practiced eye of the pilot by what appears to be a regular current flowing along in the universal waste. This delta covers an area of fourteen thousand square miles, and it divides into four separate passes, which are hardly much more than outlet currents through the expanse of waters and marsh, thus excavating deeper and navigable channels. There are lighthouses at the entrances, and just inside the Northeast Pass is a spacious mud-bank known as the Balize, where there once was a colony of wreckers, but now are pleasant residences. Above the head of the delta, and about seventy miles below New Orleans, located in eligible positions at a bend, are Forts St. Philip and Jackson, the defensive works of the river entrance, and below them the main ship channel goes out to the Gulf through the South Pass, where the bar has been deepened through the effective scouring produced by the famous Eads Jetties on either side--one over two miles long and the other a mile and a half. These jetties cost $5,000,000, and they maintain a channel thirty feet deep. The twin lights marking their extremities can be regarded as indicating as nearly as may be the mouth of the great river, and beyond is the broad expanse of the Gulf of Mexico. Vast as is the enormous outflow brought down by the Father of Waters, the drainage of the whole broad centre of the Continent thus poured into