Studies of Pacific Island Plants. X. The Meliaceae of Fiji, Samoa and Tonga. By A. C. Smith.

Flora of Tropical East Africa. Marantaceae. By E. Milne-Redhead.

Flora of the County Wicklow. By J. P. Brunker.

Textbook of Theoretical Botany. Volume I. By R. C. McLean and W. R. Ivimey-Cook.

Gotlands Orkider. By Staffan Rosvall and Bengt Pettersson.

Downs and Dunes: Their Plant Life and its Environment. By Sir Edward Salisbury.

The Tropical Rain Forest. By P. W. Richards.

Pollen Morphology and Plant Taxonomy. By G. Erdtman.

The Comparative Biochemistry of the Carotenoids. By T. W. Goodwin.

Die Wuchsstofflehre: Ergebnisse und Probleme der Wuchsstoffforschung. By Hans Söding.