Pt. 1-6 made under direction of the State experiment station Geologists-in-charge: 1892-93, 0tto Lerch.--1894-99, William Wallace Clendenin.--1899-1902, Gilbert Dennison Harris pt. I-II. A preliminary report upon the hills of Louisiana ... by Otto Lerch, [1892-93]--pt. III. A preliminary report upon the Florida parishes of East Louisiana, and the bluff, prairie and hill lands of southwest Louisiana, by W. W. Clendenin. [1896]--pt. IV. A preliminary report upon the bluff and Mississippi alluvial lands of Louisiana, by W. W. Clendenin. [1896] Appendix: A handbook of Louisiana ... by W. C. Stubbs. 1895.--pt. V. A preliminary report on the geology of Louisiana, by G. D. Harris and A. C. Veatch. [1899]--pt. VI. A report on the geology of Louisiana, containing special papers by different authors ... G. D. Harris, A. C. Veatch, and J. A. A. Pachecho. 1902