882 STRATIGRAPHICAL GEOLOGY. [Book VI. 
tion, for beds of palagonite-tuff, and other volcanic products are inter- 

stratified with them in some localities. Later in date is the “Pareora 
formation ”—a succession of bluish or greenish sandy clay, with calca- 
reous bands and concretions. Out of 154 marine mollusca Captain 
Hutton identifies 58 (or 374 per cent.) with still living forms, and is 
therefore disposed to consider the group as Miocene.! 
1 Haast, Geology of Canterbury. Hutton’s Geology of Otago. 
