128 president's address — section c. 



south-western Otago (Fiordland) too great an area has been as- 

 signed to the Manapouri Series, which is meant to include only 

 rocks of a prcbably pre-Ordovician age." It should bei mentioned 

 that the Triassic rocks west of Lake Wakitipu appear to extend 

 further north than the map indicates, but they here are merging 

 into toi region assigned in the map to the Maniototo Series, of 

 undifferentiated and doubtfully Palaeozoic rocks. These include 

 the schists of Central Otago, which the writer, following Marshall, 

 has considered to- consist of altered Permian and Triassic rocks, 

 though an earlier age is jjreferred by the Geological Survey. 



