Report of a geological reconnoissance of Indiana, made during the years 1859 and 1860, under the direction of the late David Dale Owen, M.D., state geologist.

Report of the Geological Survey of Indiana, Made During the Year

Annual Report of the Geological Survey of Indiana, Made During the Year

Report of a Geological Reconnoissance of Indiana, Made During the Years 1859 and 1860, Under the Direction of the Late David Dale Owen, M.D., State Geologist

Report of a Geological Reconnoissance of the State of Indiana, Made in the Year 1837, in Conformity to an Order of the Legislature. by D. D. Owen, M.

Report of a Geological Reconnoissance of the State of Indiana, Made in the Year 1837, in Conformity to an Order of the Legislature. by D. D. Owen, M.

Report of a Geological Reconnoissance of Indiana, Made During the Years 1859 and 1860, Under the Direction of the Late David Dale Owen, M.D., State Geologist

Annual Report of the Geological Survey of Indiana, Made During the Year

Report of the Geological Survey of Indiana, Made During the Year