The full-text of this item is not accessible via OUR Archive. Either the full-text file is not available or it is indefinitely restricted because the author has not granted permission for it to be open access. See Interloan information. If Interloan = yes, you may request this item item via your library Interloans service. ; Description: iii, 187 p. [9] leaves of plates : ill., diagrs., maps. Notes: Original lacks p.160. Thesis (M. A.)--University of Otago, 1948. Microfilm. 1 reel microfilm (negative).