REPORTS FROM THE SECTIONS. 263 
after the many able iecnpees of these springs which had been 
already published by various observers. He would only trouble 
them with a few hi upon certain of oi specimens, and 
would invite their attention to es gira of ener sn = 
ngst t 
sidge mentioned that s much struck by the general similarity 
between the “volcanic” phenomena at Oha and those pre- 
sented by the burning coal seam at nt Wingen, the so-called 
h 
brad passage ee water. oe as at both 
the vents. t the hot epaltean springs near Ohaiawai the 
cinnabar ; some of the cinnabar is apparently of _recent 
sat ona since it was observed in one place to uniformly 
globules seibindod a He was ae inclined to aioe the 
equally beautiful blue elles of the lower layers of steam floating 
over the surface of the boiling waters to a similar cause, for he 
had but little doubt that the escaping steam bears minute par- 
ticles of silica with it in its upward course. The colour of the 
