Fox. — The Waitemata Series. 481 



been described to tbe east of Point Kesolution. I have been 

 successful in finding seven new outcrops in this direction, and 

 they supply a good deal of new stratigraphical information. 

 Some hitherto unrecorded outcrops to the west are also full of 

 interest. 



Bound Point Eesolution the cliffs grow low, and are 

 covered with scrub. Here and there, however, an outcrop 

 of the strata may be seen along the cliffs to Newmarket. 

 The beds all have a westerly dip. Not far from Newmarket 

 the Parnell grit can be seen, so that it is apparently well 

 above Morrin's Point beds here, and rising in that direction. 



Leaving this doubtful locality, we come to outcrops where 

 the evidence for a superior position is more important. There 

 is, near St. John's College, a very fine exposure of the Parnell 

 grit. The College itself stands on a hi°h ridge 300 ft. above 

 the sea. Numerous small streams have cut their way down 

 in a north-westerly direction to the old crater-lake of Orakei. 

 The chief stream rises at the College, and, cutting down 

 through shales and yellow sandstones, which are dipping as 

 the bed of the stream, but at a lesser angle, reaches the 

 Parnell grit. Here there is a considerable waterfall : the 

 underlying shales have been eaten away much more rapidly 

 than the hard volcanic bed. It is at this waterfall that the 

 grit is so well exposed. It is from 15 ft. to 20 ft. thick, and 

 rather coarser, in the lower parts especially, than at Parnell. 

 There is a large amount of iron-pyrites in it, and very 

 numerous laths of feldspar. I could not find any fossils. The 

 grit is overlain by the yellow-and-white sandstones, and over- 

 lies conformably, with no sign of current- bedding, a layer of 

 shale. Beneath this is a calcareous grey sandstone, very 

 hard and full of fantastically shaped concretions. In the 

 concretions of a very similar sandstone at Kohimarama I 

 obtained some well-preserved lamellibranch shells, about the 

 size of Venus, which I have not been able to identify. These 

 sandstones are at about the same horizon. 



Plate XXXVIII. , fig. 4, shows the position of these beds. 

 At 4 in the section occurs the waterfall ; the stream has 

 cut right through the grit here, just before the latter rises 

 north-west. The outcrop between A and B is not easy to find. 

 It may be seen in a well close to the Presbyterian Church. 

 There is one break in the section, at 5, where a modern tuff 

 volcano has covered the beds and distorted them close to 

 the point of eruption. I do not think, however, that this 

 eruption disturbed the general dip of the beds. The Orakei 

 greensand should come in between beds 2 and 4. Everything 

 there is covered with very dense gorse. The "Wairau tuffs are 

 seen in the bed of the creek when the tide is out and a freshet 

 has scoured away some of the mud. 



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