The geology of Pennsylvania; a government survey: with a general view of the geology of the United States, essays on coal-formation and its fossils, and a description of the coalfields of North America and Great Britain,

Vol. II, pt. I-II, paged continuously.

Memoirs of the Geological Society of Great Britain. Explanation of sheet.

Explanation for some sheets issued in combined numbers.

Geological bulletin.

Mode of access: Internet.

Geological bulletin.

No. 4 issued 1951. No. 5 issued 1950.

A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the Survey /

Paged continuously.

Guide leaflet, geological science field trip, Greenup area : Cumberland County, Casey, Kansas, Oakland and Toledo quadrangles /

September 26, 1959.

Guide leaflet, geological science field trip, Greenville area, Bond and Montgomery counties : Greenville, Hillsboro, Mt. Olive, and New Douglas quadrangles /

"October 20, 1962."

Guide leaflet, geological science field trip, Peoria area : Peoria, Fulton and Tazewell Counties, Peoria, Canton, Glasford, Dunlap, Elmwood, and Maquon quadrangles /

September 22, 1962.

Guide leaflet, geological science field trip, Fulton area : Carroll and Whiteside Counties, Clinton and Savanna quadrangles /

September 13, 1958.

Guide leaflet, geological science field trip, Macomb area : McDonough County, Macomb and Colchester quadrangles /

May 9, 1953.

Guide leaflet, geological science field trip, Rosiclare area : Hardin County, Golconda, Cave in Rock, Shawneetown, and Equality Quadrangles /

April 12, 1958.

Metalliferous black shales and related ore deposits : program and abstracts : 1988 meeting of the United States Working Group of International Geological Correlation Program Project 254 /

Mode of access: Internet.

Reprint of a report on the origin, geological relations and composition of the nickel and copper deposits of the Sudbury Mining District, Ontario, Canada /

A revision of the original report of 1904.

Annual report of the Geological Commission.

At head of title: Cape of Good Hope. Dept. of Agriculture, 1896-1909; Cape of Good Hope. Dept. of Mines, 1910-1911.

Guide leaflet, geological science field trip, Bloomington-Normal area : McLean County, Danvers, LeRoy, McLean, and Normal quadrangles /

May 4, 1957.