na INLIS000000000009266 Ind 0010-1118009266 Geology and agriculture : part I : A Preliminary report upon the Hills of Louisiana LERCH, Otto Otto Lerch [s.l s.n 52 p.: ill.; 21 cm. 52 p.: ill.; 21 cm. 531.9LERg 531.9 GEOLOGY AGRICULTURE LOUISIANA mfn-11045