Contiene: William Albert Setchell: a biographical sketch, by T.H. Goodspeed.--The rate of plant migration, by O.W. Arrhenius.--The origin of Crepis and related genera, with paticular reference to distribution and chromosome relationships, by E.B. Babcock.--The succession and distribution of cenozoic floras around the nothern Pacific basin, by R.W. Chaney.--The origin of the desert climax and climate, by F.E. Clements.--The strand and dune flora of the Pacific coast of North America: a geographic study, by W.S. Cooper.--The genetic phytogeography of the southwestern Pacific area, with paticular reference to Australia, by Ludwig Diels.--The rôle of the terrestrial alga in nature, by F.E. Fritsch.--The plant as a metobolic unit in the soil-plant system, by D.R. Hoagland.--Malaysian phytogeography in relation to the Polynesian flora, by E.D. Merrill.--Plant communities of the world, by Eduard Rübel.--Antarctic plants in Polynesia, by Carl Skottsberg.--The published writings of William Albert Setchell (p. 313-319)

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