Outline of the history of Arctic and boreal biota during the quarternary period: Their evolution during and after the glacial period as indicated by the equiformal progressive areas of present plant species.
Häftad bok.
Nära nyskick. Sthm: Thule, 1937. 168 pp. + 43 pl. + printed wrapper. Splendid copy of the author's doctoral dissertation. [42E]