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The Purification of Ground-Waters
The primary source of ground-water is the moisture in the air. A part of this moisture, which precipitates as rain, snow, or dew, soaks into the ground until it reaches an impenetrable stratum where it collects in greater or less amount and is called ground-water. The soil air also contains moisture, a part of which condenses beneath the surface. Although Aristotle considered the mountains of the earth as sponges,† whose interstices collected the rain which appeared later in springs and wells, the present theory of the circulation of meteoric water is comparatively modern. Even as late as the middle of the seventeenth century, many of the philosophers believed that the source of ground-water was the water of the sea and of rivers which, soaking into the lower strata of the earth, was evaporated and then condensed nearer the surface.
The Purification of Ground-Waters
The primary source of ground-water is the moisture in the air. A part of this moisture, which precipitates as rain, snow, or dew, soaks into the ground until it reaches an impenetrable stratum where it collects in greater or less amount and is called ground-water. The soil air also contains moisture, a part of which condenses beneath the surface. Although Aristotle considered the mountains of the earth as sponges,† whose interstices collected the rain which appeared later in springs and wells, the present theory of the circulation of meteoric water is comparatively modern. Even as late as the middle of the seventeenth century, many of the philosophers believed that the source of ground-water was the water of the sea and of rivers which, soaking into the lower strata of the earth, was evaporated and then condensed nearer the surface.
The Purification of Ground-Waters
Weston, Robert Spurr (author) / Johnson, William S. (author)
Transactions of the American Society of Civil Engineers ; 64 ; 112-181
2021-01-01
701909-01-01 pages
Article (Journal)
Electronic Resource
Unknown
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