436 



Transactioyis, — Chemistry. 



No. (9). — Cameron's Bath, situated in the same locality as No. 6. It is 

 a muddy pool, 20 feet in diameter, liaving a temperature of 109° to 115°, 

 but kept in a state of ebullition by a powerful escape of gas, whicli causes 

 faintness when inhaled. The pool has no outflow, and the water is a dirty 

 chocolate colour. As received, the water had a persistent acid reaction and 

 offensive odour ; it had deposited a siliceous sediment in large quantities. 



Analysis. 

 Sulphate of isotash 



,, soda 



,, alumina 



,, lime .. 



,, magnesia 



,, iron 



Phosphate of alumina 

 Suli:)huric acid, free 

 Hydrochloric acid, free 

 Sulphuretted hydrogen 

 Silica 



Xo. (10).— From Perekari, Ih miles from Ohinemutu. Temperature of 

 water 130° to 150°. A boiling pool in a sand-spit near the lake, in which 

 the water is discoloured, and has a very offensive smell. As received, it 

 was clear and colourless, with a strong acid reaction ; it had deposited a 

 great deal of sediment, whicli consists of nearly pure silica. 



Analysis. 

 Sulphate of soda . . . . . . . . . . 26*75 





£7^ 



. . 33-47 





. . traces 





.. 2-11 





.. 1-14 





.. 1-20 





. . traces 





.. 76-79 





.. 7-28 





•41 





.. 7-01 





130-35 



,, alumina 



,, lime 



,, magnesia 



,, iron 



Chloride of potassium 

 Phosphate of alumina 

 Hydrochloric acid, free 

 Silica 



traces 



2-45 



1-86 



•76 



-63 



traces 



5-38 



18-17 



56-00 



m 



No. (11). — From Te Kauwhanga mud bath, IJ miles from Ohinemutu. 

 A thick, brown, muddy water, covered with an oily slime, and having a 

 temperature of 80° to 100°. When received, it had deposited a heavy 

 muddy sediment, and had a persistent acid reaction, and an offensive 

 odour. 



