Descriptions and Notes on Some New Zealand Collembola. By J. L. Salmon. 352 A New Fly, Diptera Anthomyidae, from New Zealand. By J. T. Salmon. 359 New Species of New Zealand Lepidoptera. By Edward Meyrick. 426 Geology. The Tertiary Sequence in North-eastern Marlborough, New Zealand. By L. C. King. 21 The Structure of North-eastern Marlborough, New Zealand. By L. C. King. 33 The Metamorphic and Plutonic Rocks of Lake Manapouri, Fiordland, New Zealand—Part I. By F. J. Turner. 83 Note on the Density and Pressure Inside the Earth. By K. E. Bullen. 122 The Lower Waipara Gorge. By George Jobberns. 125 An Intrusion of Norite and Its Accompanying Contact Metamorphism at Bluff, New Zealand. By Harold Service. 185 The Metamorphic and Plutonic Rocks of Lake Manapouri, Fiordland, New Zealand—Part II. By F. J. Turner. 227 Interesting Xenoliths from Whangarei Heads, Auckland, New Zealand. By J. A. Bartrum. 251 Notes on the Occurrence of Radiolarian Limestone among the Older Rocks of South-eastern Otago. By W. N. Benson and F. Chapman. 373 Petrofabric Investigations of Otago Schists. No. 1—Quartz and Mica Fabrics of Three Schists from Patearoa. By F. J. Turner. 443