452 Transactions. — Geoloyy. 



place and water was got at the same depth, and this has con- 

 tinued to supply houses in the neighbourhood successfully. 



The new bore is 11 ft. off the old bore, and does not seem 

 to affect it. This bore is about 1 chain off the river-bank on 

 the right bank of the river. 



Before this a trial bore, 14 chains down the river and 

 4 chains off the bank, was put down by Mr. Walker to 610 ft., 

 but no successful water-supply was got, and no solid papa 

 stratum was reported there. 



The following notes were given to me by Mr. Walker : — 



From surface to 60 ft., sand and pumice. 



60 ft. to 66 ft., sand. 



66 ft. to 105 ft., clay. 

 105 ft. to 117 ft., sand (wood at 110ft.). 

 117 ft. to 127 ft., shingle. 

 127 ft. to 130 ft., sand. 

 130 ft. to 138 ft., shingle. 

 138 ft. to 144 ft., coarse grit. 

 144 ft. to 183ft., sand. 

 183 ft. to 183^- ft., hard seam (taking five hours 



to bore) . 

 1831 ft. to 185 ft., fine sand. 

 185 ft. to 239 ft., papa. 

 239 ft. to 260 ft., sand. 

 260 ft. to 540 ft , papa. 



At 540 ft. water came up strongly, after boring through a 

 hard seam. The water was got in sand intermixed with fine 

 pumice, into which the rods were put down to 553 ft. The 

 bore is piped with 313J ft. of 4 in. pipe, the top of last length 

 being 15 in. below the surface (the rest of the bore has no 

 pipe). A strong volume of water was got, with a good pres- 

 sure. 



Art. XLV. — The Volcanic Beds of the Waitemata Series. 



By C. E. Fox. 



[Read before the Auckland Institute, 34th February, 1903.] 



Plates XXXVIII.-XL. 



1. Introduction. 

 The Waitemata series is a group of strata developed round 

 the shores of the Waitemata Harbour, from which it derives 

 its name. The upper limit of the series is well defined, since 

 a complete unconformability exists between its shales and 



