A forest of the coal age / by B. E. Dahlgren, Acting Curator, Dept. of Botany.
Dahlgren, B. E.
Field Museum of Natural History. Dept. of Geology
Field Museum Press,
Plate I is followed by a leaf of descriptive letterpress.
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
G253 .F43 no. 14
Geology leaflet (Field Museum of Natural History) ; no. 14