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"Generalized profile of the earth-crust." -Dryer, 1901

Earth Crust

"Generalized profile of the earth-crust." -Dryer, 1901

"(a)--Diagrammatic cross section of an island or peninsula showing relations of fresh ground water and sea water...(b) Cross section of same island or peninsula showing changes in shape of water table and contact between fresh and salt water resulting from pumping a well." -Gunter, 1933

Water Table

"(a)--Diagrammatic cross section of an island or peninsula showing relations of fresh ground water and…