Leaflet (Field Museum of Natural History. Dept. of Geology) ; no. 4
Farrington, Oliver C. (Oliver Cummings), 1864-1933
Chicago :Field Museum of Natural History,1923.
Pages also numbered 33-43 at foot of pages.
A second edition of this leaflet was issued in 1941 with minor additions.
Fieldiana, Popular series, Geology, was published by Field Museum of Natural History, Dept. of Geology as Leaflet (no. 1-4, 1922-1923) and as Geology leaflet (no. 5-14, 1925-1933). The Leaflet series
QE1 .F5 1923
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