Contents Obituaries. André Léon Tonnoir xxxvii G. F. J. M. Britton xxxvii W. H. Guthrie-Smith. 171 Botany. Growth of Certain Indigenous Species of Cushion-plants. By J. Scott Thomson and G. Simpson 25 Notes on Some New Zealand Plants and Descriptions of New Species. By G. Simpson and J. Scott Thomson 27 Leaf Anatomy of the New Zealand Mangrove. By G. T. S. Baylis 164 Chemistry. The Isolation of Phyllocladene from the Leaf-oil of Podocarpus hallii and its Significance on the Botanical Classification of this Species. L. H. Briggs. 173 Geology. Notes on the Geography and Rocks of the Ranges Between the Pyke and Matukituki Rivers, North-west Otago. By W. N. Benson and J. T. Holloway 1 Trias-Jura? By M. Ongley 57 The Basal Beds of the Akaroa Volcano. By R. Speight 60 Elastic Constants of the Earth's Mantle. By K. E. Bullen 137 Applicability and Limitations of Petrofabric Analysis Without Use of a Universal Stage. By F. J. Turner 140 The Gravels of the Mackenzie Intermont. R. Speight. 175 Mugearites in the Dunedin District. W. N. Benson and F. J. Turner. 188 Landslides and Allied Features in the Dunedin District in Relation to Geological Structure, Topography, and Engineering. W. N. Benson. 249