Adkin. — Porirua Harbour. 



145 



Dr. C. A. Cotton in a detailed paper on Wellington physiography (1912) 

 referred to the Porirua area at rather greater length. He dissented from 

 the view held by Bell that the Porirua Stream flows down the back slope 

 of a tilted block, on the grounds that the Porirua occupied its present 





C 7erawiu£z [^TMajJxa- 



MS. 



/ \^iA^^J^S,%POHT NICHOLSON^ ■ ~°W 







4'i 30 ' S Lot 



Fig. 1. — Locality map of south-western Wellington, showing places mentioned in text ; 

 also the area at Porirua Harbour shown in figs. 4, 5, and 6. 



valley before the faulting and tilting took place. It does not necessarily 

 follow, however, that the excavation of the Porirua Valley has been accom- 

 plished since the faulting and tilting, and that it was not in existence prior 

 to those events. 



The drowning of the lower reach of the Porirua Stream 



