FIG. 3-Section of Eagle Pass artesian well. Nos. 24 to 8 represent the whole thickness of the Coal series; Nos. 8 to 1 belong to the San Miguel beds.

FIG. 3-Section of Eagle Pass artesian well.
Nos. 24 to 8 represent the whole thickness of the Coal series; Nos. 8 to 1 belong to the San Miguel beds.

from

DEPARTMENT OF THE INTERIOR BULLETIN OF THE UNITED STATES GEOLOGICAL SURVEY No. 164
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