514 Transactions.—Geology. 
microscopists. Mr. Cheeseman, to whom I am indebted for the samples 
just alluded to, forwarded some of the water to Mr. Skey, of Wellington, 
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. Tam indebted to Mr. Tunny for 
the analysis, which is as follows — 
Sulphate of Soda .. és à 17:60 grains per gallon. 
$5 Lime * 7:52 ay 
à Manus A «x OO j » 
Alumina 
si Iron . wA b 
Sulphuric Acid, free oe tr - 190:02 
Silica.. rH 2d «i x S100 "7, 
Art. LXXXVI.—Notes of a Traditional Change in the Coast line at Manukau 
Heads. By S. Percy Surrg. 
[.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 Raihau, 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 2 curved line from Manukau Heads to the 
aikato River. 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 
present coastline is a very nearly straight line, and the distance may be 
