Amber: its physical properties and geological occurrence / by Oliver C. Farrington, Curator of Geology.
Farrington, Oliver C. (Oliver Cummings),
Field Museum of Natural History,
Pages also numbered 25-31 at foot of pages.
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 no. 3
Leaflet (Field Museum of Natural History. Dept. of Geology) ; no. 3.
U.S. Geological Survey Libr./ICU