1. Mammals / by Einar Lönnberg -- 2. Mammals from Queensland / by Einar Lönnberg and Eric Mjöberg -- 3. Reptiles / by Einar Lönnberg and L.G. Andersson -- 4. Batrachians / by Lars Gabriel Andersson -- 5. Some Mesozoic plants / by Ernst Antevs -- 6. Zur Morphologie des Hypsiprymnodon Moschatus / von Albertina Carlsson -- 7. Reptiles collected in Northern Queensland / by Einar Lönnberg and L.G. Andersson -- 8. Cirripedien / von Hjalmar Broch -- 9. Batrachians from Queensland / by Lars Gabriel Andersson -- 10. Plants / by E. Cheel -- 11. Alcyonarien / von Hjalmar Broch -- 12. Hydroiden / von Elof Jäderholm -- 13. Oligochäten / von W. Michaelsen -- 14. Australische Cestoden / von O. Nybelin -- 15. Descriptions of two Australian phyllopoda / by Karl Yngve Schartz -- A new fresh-water ostracod / by Tage Skogsberg -- 16. Mollusca / by Nils Hj. Odhner -- 17. Studies of the birds of north west Australia / by Rudolf Söderberg