Report on the geological age of the Mississippi delta /
Hilgard, Eugene W. 1833-1916.
Report on the geological age of the Mississippi delta / by Professor E. W. Hilgard to General A. A. Humphreys. - Washington : Gov't print. off., 1870. - 16 p. ; 23 cm.
gs 07000830
Geology--Mississippi River.
QE117 / .H57
Report on the geological age of the Mississippi delta / by Professor E. W. Hilgard to General A. A. Humphreys. - Washington : Gov't print. off., 1870. - 16 p. ; 23 cm.
gs 07000830
Geology--Mississippi River.
QE117 / .H57