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GEOLOGIC FEATURES SLIDE COLLECTIONS GROUNDWATER List price: $75/set
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GROUNDWATER SET I: 50 color photos of groundwater from the collections of John Shelton, Ken Hamblin, Don Easterbrook, and other sources. Includes solution of limestone along joint planes, solution sculpting of limestone, karst topography, sinkholes, solution caves, breccia, springs, travertine falls and terraces, hot springs, geysers. $75.
