398 Transactions. — Gcologij. 



followed by a great thickness of handed clays, which form 

 the headland here, where the dip changes to westward. The 

 section along line C-D (Plate XXX., fig. 2) shows the arrange- 

 ment of the beds at the point as follows : — 



1, false-bedded sandstones, blue clays, and grits ; 



2, tufaceous grit (fossiliferous); 



3, banded clays and ferruginous sandstones, alternating as 



thin layers. 



Proceeding along the beach from C (the west end of the 

 section), the dip rapidly increases from 35° to 45°, and then to 

 60°, and at the extreme point the direction of the dip changes 

 from E. to W. at angles between 45° and 50° (Plate XXX., 

 fig. 3) ; 



1 being blue clays ; 



2, grits and tufaceous sandstones ; 



3, banded sandstones and clays ; 



4, beach-sands; 



H, Cheltenham Beach. 



At the Calliope Dock the strata are lying almost hori- 

 zontal, or dip at an angle of 2° or 3° to the northward. From 

 the top of the cliffs behind the dock the surface of the ground 

 slopes rapidly to the northward, and at the road-line to Lake 

 Takapuna is only a foot or two above high-watermark. From 

 this point towards Cheltenham Beach there is a wide stretch 

 of low swamp-land where it is impossible to make strati- 

 graphical observations of any kind whatever. But, besides this 

 break, it is necessary to point out that the foot of Mount 

 Victoria lies almost, if not right, in the line of section, and I 

 think it more than probable that the easterly dip of the beds- 

 at Cheltenham Beach is due to the eruption of the lavas and 

 ejecta which compose that hill. 



As there seemed to be little prospect of obtaining satisfac- 

 tory evidence in this direction, the next day I made a close 

 examination of the Parnell grit at Judge's Bay and Parnell 

 Point, and at the former was fortunate enough to discover a 

 number of marine fossils near the base of the cliff", at the end 

 of the long flat reef which extends from the east side of the 

 bay far into the harbour in the direction of the North Head. 

 They occur mostly in the lower 2ft. of the grit, which is 

 generally more or less calcareous ; but they are by no means 

 plentiful, and from their dirty-yellowish colour, whicli closely 

 resembles that of the matrix, they can rarely be seen without 

 close inspection of the weathered surfaces. They are mostly 

 testiferous, but brittle and fragmentary, and good specimens 

 are scarce. 



Among the forms collected were a Ccritliiuni, P cc ten poly - 

 morpholdcs, a Teredo, several small corals, and fragments of a 



