This text is part of:
Table of Contents:
 Some of these plains become lakes, by rivers spreading over or falling into them and then flowing off. Some are dried up, and being very fertile, are cultivated in every possible way. But as the ground underneath is full of caverns and fissures, it has frequently happened, that violent earthquakes have obstructed some passages, and formed others under-ground, or on the surface, the water being carried off, either by subterranean channels, or by the formation of lakes and rivers on the surface. If the deep subterranean passages are stopped up, the waters of the lakes increase, so as to inundate and cover cities and whole districts, which become uncovered, if the same or other passages are again opened. The same regions are thus traversed in boats or on foot, according to circumstances; and the same cities are, occasionally, on the borders of, or at a distance from, a lake.
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 United States License.
An XML version of this text is available for download, with the additional restriction that you offer Perseus any modifications you make. Perseus provides credit for all accepted changes, storing new additions in a versioning system.