The cannon ball tree : the monkey pots.
The cannon-ball tree
Leaflet (Field Museum of Natural History. Dept. of Botany) ; no. 6
Dahlgren, B. E. (Bror Eric), 1877-1961
Chicago:Field Museum of Natural History,1924.
Signed: B.E. Dahlgren.
Pages also numbered - at foot of pages.
Fieldiana, Popular series, Botany, was published by Field Museum of Natural History, Dept. of Botany as Leaflet (no. 1-9, 1922-1924), and as Botany leaflet (no. 10-25, 1924-1940), and by Chicago Natural History Museum as Popular series: Botany (no. 26-27, 1947-1950).
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