514 



Transactions. — Geology. 



microscoplsts. Mr. Clieeseman, to whom I am indebted for tlie samples 

 just alluded to, forwarded some of the water to Mr. Skey, of WelHngton, 

 whose report, just received, I will now read. 



The other sample I have now to mention is a hot spring at Motuhora 

 (Whale Island), in the Bay of Plenty. Here the water flows out of a valley 

 in large quantities into the sea, the heat being so great as to cause volumes 

 of steam to rise as the water flows over the sand. The temperature of this 

 spring, where it rises from the ground, is 198° Fahr., the taste being 

 extremely acid, and the water very clear. I am indebted to Mr. Tunny for 

 the analysis, which is as follows : — 



Sulphate of Soda . . 



17-60 



grains 



per 



gallon 



,, 



Lime . . 



7-52 



,, 







>» 



Magnesia 



5-00 



,, 







„ 



Alumina 



48-48 



,, 







i> 



Iron . . 



9-38 



,, 







Sulphuric 



Acid, free 



.. 138-32 



„ 







Silica . . 





24-00 



)> 















250-30 



Art. LXXXVI. — Notes of a Traditional Change in the Coast line at Manukau 

 Heads. By S. Percy Smith. 

 [Read before the Auckland Institute, 18th November, 1878.] 

 Some thirteen years ago, when encamped one night with a party of natives 

 on the long beach which extends from Manukau to Waikato Heads, the 

 conversation over the camp fire turned upon some old tribal boundaries, 

 one of which ended at a place said by Aihepene Eaihau, the narrator (who 

 was then living at Waiuku, but who now, having married the Princess 

 Sophia, resides in the King's country), to be now covered by the sea. Upon 

 enquiring further of him as to this particular place, he informed me that 

 many generations ago the coast-line extended much further seaward than it 

 does at present, projecting in a curved line from Manukau Heads to the 

 Waikato Eiver. This point he described as a low, sandy country, with 

 numerous sand-dunes, fresh-water lakes, with clumps of tall manuka trees 

 scattered over its surface. 



The lakes were much resorted to by the natives in those days, on 

 account of the great number of eels found in them. 



He further stated that it was a three days' journey at that time for a 

 man following the beach from Manukau to Waikato Heads, whereas the 

 |)resent coast-line is a very nearly straight line, and the distance may be 



