272 



TrMiaactions. — Geology. 



do not themselves give rise to sufficient heat to heat the water. 

 The water must be hot before it reaches the peat-bed.* 



I mention these details because it has been supposed that 

 the presence of sulphuretted hydrogen in these springs indicates 

 the presence of volcanic energy below the Hanmer Plains, 

 which has been supposed to be connected with the origin of 

 the earthquake. 



Other hot springs occur in Cow Creek, a branch of the 

 Edwards Eiver ; t in Cannibal Gorge ; in the Upper Hope ; in 



* The following are the analyses (referred to on p. 271), which have 

 not before been published : — 



t Analysis made in the Colonial Laboratory, Wellington, of incrusta- 

 tions from the hot springs at Cow Creek, Edwards River, Amuri District, 

 forwarded by Professor Hutton, November, 1888 : — 



Nos. 1 and 2 are pure alum, which has a sweetish astringent taste, 

 and is entirely soluble in water. 



No. 3 is a dark pitchy substance, having a disagreeable pungent 

 odour. The following is the result of a partial analysis of it : — • 



Organic matter . . . . . . . . 16-00 



Sulphur (free) . . . . . . . . . . 16-25 



Iron-oxide .. .. .. .. .. 13"00 



Sand and clay . . . . . . . . 36-00 



Water . . . . . . . . . . . . 18-75 



100-00 



