A forest of the coal age / by B. E. Dahlgren, Acting Curator, Dept. of Botany.
Geology leaflet (Field Museum of Natural History) ; no. 14
Dahlgren, B. E. 1877-1961
Field Museum of Natural History. Dept. of Geology
Chicago :Field Museum Press,1933.
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
NAL: 402.1 D13
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