336 



Transactions. — Geology. 



Water was found indifferently in beds of sand, shingle, and 

 rubble, and from the surface of rock. 



It will be seen from the analyses that while the samples, 

 vary much amongst themselves, yet all contain very much 

 larger proportions of chlorine and of total solids than does the 

 water from the Christchurch artesian system. It is reason- 

 able, therefore, to conclude that the source is a purely local 

 one — the neighbouring hills — although the water is not by 

 any means confined to hill deposits. 



Qualitatively the waters are much alike, all containing 

 carbonates, sulphates, calcium, and magnesium. The quan- 

 titative results only are appended : — 



Art. XXXIX. — On the Occurrence of Crystallized Native 

 Copper on Mine-timbers at Kawau Island. 



By W. H. Baker, B.Sc 



[Read before the Auckland Institute, 13th August, 1900.] 



Owing to the increase in the price of copper attention has 

 lately been turned to several abandoned copper-mines with 

 the object of ascertaining if, by the use of more modern 

 mining and metallurgical processes, these mines would now 

 be remunerative. The Kawau Mine was one of these, since 

 when it was abandoned some forty years ago there was still 

 a large amount of copper-ore in sight. 



It may be as well to describe this mine. It is of especial 

 interest, since it is the first lode of copper-ore that was worked 

 in New Zealand, the first operations dating from 1842. The 

 lode was discovered in the south-west part of the island, and 





