Geological Report on Arenac County (Classic Reprint)

Report of the Superintendent of the Geological Survey (Classic Reprint)

Summary Report of the Geological Survey Department of Canada (Classic Reprint)

Annual Report on the Geological Survey of Pennsylvania (Classic Reprint)

Liverpool Geological Association Annual Report, 1887 (Classic Reprint)

Report on the Geological Map of Massachusetts (Classic Reprint)

First Report of the Geological Survey of Natal and Zululand (Classic Reprint)

Report of a Geological Reconnaissance Made in 1835 (Classic Reprint)