Geology of the Papakura-Hunua District, Franklin County, Auckland. By C. R. Laws, M.Sc., Dunedin Training College. Contents. [Read before the Otago Institute, 13th May, 1930; received by Editor, 3rd July, 1930; issued separately, 31st May, 1931.] Introduction and Previous Work. General Description of Area. Synopsis of Structure and Topography. Stratigraphy.  Summary.  1. Greywacke of Hokonui System (? Trias-Jura).  2. Tertiary Sequence (Papakura Series).   Introduction.   Description of Occurrences.    Hay's Creek Area.    Ardmore Valley Area.    Bell Creek Area.    Area north-east of Ardmore Valley.   Stratigraphic Relations and Comparisons.   Conclusions regarding Correlations.   Palaeontology.  3. Post-Tertiary Deposits.   Geological History and Detailed Structure.    Geological History.    Surface of Oldermass.    Detailed Structure.     Fault Systems.      Wairoa Fault.      Hunua Fault.      Papakura-Drury Fault.      Papakura Valley Fault. Summary and Conclusions. Appendix.   1. Petrography.    (a) Hokonui Greywacke (? Trias-Jura).    (b) Papakura Limestone (Tertiary).    (c) Basalt (post-Tertiary).   2. Description of Coal Beds (Tertiary). Literature Cited. Introduction and Previous Work. The investigation of the district described herein was undertaken in 1924 under the direction of Professor J. A. Bartrum of Auckland University College, who gave the writer a preliminary statement of his conception of the general structure of the district that has proved substantially correct. The results of the work were submitted as a thesis for the Master's degree, and read, in the form of a joint paper with Professor Bartrum, before the Auckland Institute in 1925. The