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Hill, Robert Thomas, 1858-1941. (1)
SubjectCretaceous - Del Rio clay; Ft. Worth limestone; Edwards limestone; Comanche Peak limestone; Glen Rose formation (1)Geology -- United States --Maps (1)Geology--Texas--Maps (1)
Neogene - unnamed strata (1)
... View MoreDate Issued1897 (1)TypeBook (1)Image (1)Map (1)Has File(s)Yes (1)