Volume 56, 1926

Contents.
| Pages | |
| Presidential Address | xvii–xxi |
| Botany. | |
| New Zealand Angiosperms. | |
| By W. R. B. Oliver, F.L.S. | 1–5 |
| Descriptions of New Native Plants | |
| By D. Petrie, M.A., Ph.D., F.N.Z.Inst. | 6–16 |
| Petalochilus: a New Genus of New Zealand Orchids. | |
| By R. S. Rogers, M.A., M.D. | 16–18 |
| A Proposed New Botanical District for the New Zealand Region. | |
| By L. Cockayne, Ph.D., F.R.S., F.N.Z.Inst., and H. H. Allan, M.A., D.Sc., F.L.S. | 19–20 |
| Notes on New Zealand Floristic Botany, including Descriptions of New Species. | |
| By L. Cockayne, Ph.D., F.R.S., F.N.Z.Inst., and H. H. Allan, M.A., D.Sc., F.L.S. | 21–33 |
| Ferns and Flowering-plants of Mayor Island, N.Z. | |
| By H. H. Allan and K. W. Dalrymple | 34–36 |
| Vegetation of Mount Peel, Canterbury, N.Z. Part 1: The Forest and Shrublands. | |
| By H. H. Allan, M.A., D.Sc., F.L.S. | 37–51 |
| A Die-back of Pinus radiata and P. muricata caused by the Fungus Botryodiplodia pinea (Desm.) Petr. | |
| By K. M. Curtis, M.A., D.I.C., F.L.S., Mycologist, of the Cawthron Institute, Nelson | 52–57 |
| Three Fungous Diseases of Salix in New Zealand, and some Saprophytic Fungi found on the same Hosts. | |
| By B. Jean Murray, B.Sc., Assistant Mycologist, Cawthron Institute, Nelson | 58–70 |
| A New Genus of the Hysterangiaceae. | |
| By G. H. Cunningham, Mycologist, Department of Agriculture, Wellington, N.Z. | 71–73 |
| Third Supplement to the Uredinaceae and Ustilaginaceae of New Zealand. | |
| By G. H. Cunningham, Mycologist, Department of Agriculture, Wellington, N.Z. | 74–80 |
| Botanical Notes, including Descriptions of New Species. | |
| By H. Carse | 80–86 |
| Dactylanthus Taylori. | |
| By H. Hill | 87–90 |
| Geology. | |
| Geology of the Rakaia Gorge District. | |
| By P. T. Cox | 91–111 |
| Considerations relative to the Age of the Earth's Crust. | |
| By Hon. Sir Frederick Revans Chapman | 112–120 |
| Cretaceous Plants from Kaipara, N.Z. | |
| By W. N. Edwards, M.A., British Museum, London | 121–128 |

| The Upper Cretaceous Ammonites of New Zealand. | |
| By P. Marshall, D.Sc., F.G.S., F.N.Z.Inst. | 129–210 |
| A New Species of Osmundites from Kawhia, New Zealand.. | |
| By P. Marshall, D.Sc., F.G.S., F.N.Z.Inst. | 210–213 |
| Geology of Cordy's Flat, Malvern Hills, Canterbury. | |
| By G. Jobberns, M.A., B.Sc., Christchurch Training College | 214–225 |
| Raised Beaches in Teviotdale District, North Canterbury. | |
| By G. Jobberns, M.A., B.Sc., Christchurch Training College | 225–226 |
| New Shells from New Zealand Tertiary Beds: Part 2. | |
| By H. J. Finlay, M.Sc., National Research Scholar in Palaeontology | 227–258 |
| Tertiary and Recent Voltudae of New Zealand. | |
| By J. Marwick, M.A., D.Sc., New Zealand Geological Survey | 259–303 |
| Myalinidae from the Jurassic of New Zealand: a New Genus and a New Species. | |
| By J. Marwick, M.A., D.Sc., New Zealand Geological Survey | 304–306 |
| Molluscan Fauna of the Waiarekan Stage of the Oamaru Series. | |
| By J. Marwick, M.A., D.Sc., New Zealand Geological Survey | 307–316 |
| New Tertiary Mollusca from North Taranaki | |
| By J. Marwick, M.A., D.Sc., New Zealand Geological Survey | 317–331 |
| Geology of Upper Waitotara Valley, Taranaki. | |
| By L. I. Grange, M.Sc., F.G.S., New Zealand Geological Survey | 331–336 |
| Significance of Fossils form the Huiroa Oil-bore, Taranaki. | |
| By L. I. Grange, M.Sc., F.G.S., New Zealand Geological Survey | 337 |
| Fossil Mollusca from the Waihao Greensands. | |
| By R. S. Allan, M.Sc., Otago University | 338–346 |
| Geology of Fossil Localities near Waipukurau, Hawke's Bay. | |
| By J. Allan Thomson, D.Sc., F.G.S., F.N.Z.Inst., Hutton Medallist, Director of the Dominion Museum | 347–354 |
| Intermontane Basins of Canterbury: Part 2 | |
| By R. Speight, M.A., M.Sc., F.G.S., F.N.Z.Inst., Curator, Canterbury Museum | 355–360 |
| Stratigraphical Position of the Chateris Bay Sandstone. | |
| By R. Speight, M.A., M.Sc., F.G.S., F.N.Z.Inst., Curator, Canterbury Museum | 361–363 |
| Results given by Wells at Christchurch Pumping-station, Beckenham. | |
| By R. Speight, M.A., M.Sc., F.G.S., F.N.Z.Inst., Curator, Canterbury Museum | 363–368 |
| Artersian Wells of the Christchurch Area. | |
| By F. W. Hilgendorf, M.A., D.Sc., F.N.Z.Inst. | 369–382 |
| Morainic Mounds on the Waimarino Plain near Ruapehu. | |
| By James Park, F.G.S., F.N.Z.Inst. | 382–383 |
| Granite Enclosures in a Quartz-biotite-diorite at Green Islets, Southland | |
| By James Park, F.G.S., F.N.Z.Inst. | 384–386 |
| Zoology.. | |
| New Zealand Lepidoptera: Notes and Descriptions | |
| By A. Philpott, Assistant Entomologist, Cawthron Institute, Nelson | 387–399 |
| List of New Zealand Species of Borkhausenia (Oecophoridae,: Lepidoptera), including New Species. | |
| By A. Philpott, Assistant Entomologist, Cawthron Institute, Nelson | 399–413 |
– xiii –

| A New Endemic Genus of Lepidoptera. | |
| By A. Philpott, Assistant Entomologist, Cawthron Institute, Nelson | 414 |
| Descriptions of New Zealand Lepidoptera. | |
| By E. Meyrick, B.A., F.R.S. | 415–416 |
| New Species of Lepidoptera. | |
| By C. E. Clark, F.E.S. | 417–421 |
| The Genus Pachyrhamma (Rhapidophorinae: Orthoptera). | |
| By D. D. Milligan, Research Student in Orthoptera, Cawthron Institute, Nelson | 422 |
| Forest-floor Covering and its Life. | |
| By R. E. R. Grimmett, M.Sc., Chemistry Laboratory, Department of Agriculture, Wellington | 423–440 |
| A New Genus and Eight New Species of Coleoptera. | |
| By Albert E. Brookes | 440–448 |
| Biological Notes on New Zealand Heteroptera. | |
| By J. G. Myers | 449–511 |
| New Zealand Amphipoda: No. 6. | |
| By Chas. Chilton, M.A., D.Sc., F.L.S., &c., Professor of Biology, Canterbury College | 512–518 |
| New Zealand Crustacea Euphausiacea and Mysidacea. | |
| By Chas. Chilton, M.A., D.Sc., F.L.S., &c., Professor of Biology, Canterbury College | 519–522 |
| Dispersal of Pebbles and Marine Organisms. | |
| By Chas. Chilton, M.A., D.Sc., F.L.S., &c., Professor of Biology, Canterbury College | 523–524 |
| Food of New Zealand Fishes. | |
| By W. J. Phillipps, F.L.S. | 525–529 |
| New or Rare Fishes of New Zealand. | |
| By W. J. Phillipps, F.L.S. | 529–537 |
| Descriptions of New Zealand Fishes. | |
| By L. T. Griffin, Assistant Curator, Auckland Museum | 538–546 |
| Australasian Patelloididae. | |
| By W. R. B. Oliver | 547–582 |
| New Zealand Mollusca: No. 3. | |
| By Marjorie K. Mestayer, Dominion Museum | 583–587 |
| New Species of Recent Mollusca. | |
| By Albert E. Brookes | 588–590 |
| Descriptions of Six New Species and a New Genus of Gasteropod Mollusca from Northern New Zealand. | |
| By A. W. B. Powell | 591–596 |
| Miscellaneous. | |
| The Maori Craft of Netting. | |
| By Te Rangi Hiroa (P. H. Buck), D.S.O., M.D., Ch.B. | 597–646 |
| Food Values of New Zealand Fish. Part 5: The Fats of the Red Cod in relation to its Food. | |
| By C. L. Carter, M.Sc., A.I.C., and John Malcolm, M.D. | 647–650 |
| Food Values of New Zealand Fish. Part 6: The Vitamin-A Content of Mutton-bird Oil and of some Fish-oils. | |
| By John Malcolm, M.D. | 650–658 |
– xiv –

| Popular Names of New Zealand Plants. | |
| By Johannes C. Andersen, F.N.Z.Inst. | 659–714 |
| Determination of Word-rhythm. | |
| By H. D. Broadhead, Litt.D., Canterbury College | 715–721 |
| Effects of changing Price-levels on the Economic Development of New Zealand. | |
| By J. B. Condliffe, Professor of Economics, Canterbury College | 722–732 |
| Soils of the Rotorua County. | |
| By B. C. Aston, F.I.C., F.N.Z.Inst., Hector Medallist | 733–738 |
| The Quality of New Zealand Wheats and Flours. | |
| By L. D. Foster, M.Sc., Chemical Laboratory, Department of Agriculture, Wellington | 738–743 |
| Proceedings. | |
| Annual Meeting of the Board of Governors, 1925 | 747–765 |
| Appendix. | |
| New Zealand Institute Acts and Regulations | 769–776 |
| Board of Science and Art | 776–777 |
| Tongariro National Park Board | 777 |
| Hutton Memorial Medal and Research Fund | 778–780 |
| Hector Memorial Research Fund | 780–782 |
| Hamilton Memorial Fund | 783 |
| Regulations for administering the Government Research Grant | 783–785 |
| Carter Bequest | 785–787 |
| New Zealand Institute—List of Officers, &c. | 788–792 |
| Roll of Members | 793–809 |
| Serial Publications received by the Library of the Institute | 810–817 |
| List of Institutions to which the Publications of the Institute are presented | 818–824 |
| General Index | 825–857 |
| Index of Authors | 859–860 |
