Earth science field trip, guide leaflet : Metropolis area : Massac, Pope and Johnson Counties : Paducah, Brownfield, Vienna and La Center Quadrangles.

"April 11, 1959."

Guide leaflet, geological science field trip, Wheaton area : DuPage and Kane Counties, Wheaton, Barrington, Elgin and Geneva quadrangles /

April 29, 1962.

Rock Island-Moline area : Rock Island County, guide leaflet for Illinois Academy of Science /

"May 6, 1950."

Guide leaflet, geological science field trip, Milan-Rock Island area : Rock Island and Henry Counties, Miland, Coal Valley, Port Byron, Green Rock, Davenport East and Silvis quadrangles /

September 17, 1960.

Geological science field trip guide leaflet : Hamilton area, Hancock County : Keokuk, Carthage, Fort Madison, and Lomax Quadrangles.

Bibliography included in abstract.

Conservation school guide leaflet: Fairgrounds, Springfield, Illinois : Springfield area, Sangamon Co. : Springfield Quadrangle.

"Leader: George M. Wilson.

Guide leaflet, ...

Mode of access: Internet.

Illinois State Academy of Science geology field trip, guide leaflet : Springfield area : Springfield County : Springfield and Divernon Quadrangles /

"May 5, 1956."

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.

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

May 4, 1957.