436 Traneactions.— Chemistry. 
No. (9).—Cameron's Bath, situated in the same locality as No. 6. Tt is 
` a muddy pool, 20 feet in diameter, having a temperature of 109° to 115°, 
but kept in a state of ebullition by a powerful escape of gas, which 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 potash x bie a iy 94 
" goda... is s e ME os 8947 
» alumina Ls ès s v .. traces 
^d lime z 2:11 
= magnesia y ae Er ace 114 
m Iron: .. "m ks ee Si x 1:20 
Phosphate of alumina as Es a s .. traces 
Sulphurie acid, free s S M da se 4579 
Hydrochloric acid, free s is = He 7°28 
Sulphuretted hydrogen  .. ar i ià oe 41 
Silica tue ae ‘ . 7:01 
130:35 
No. (10).—From Perekari, 1} 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, which consists of nearly pure silica. 
Analysis. 
Sulphate of soda "^ Es ` 26:75 
iš alumina se es $5, ot .. traces 
» lime ve "s a v. a 
i magnesia a i es 2s oc G 
n iron zt é = E "16 
Chloride of potassium — .. . Am ks '63 
Phosphate of alumina : v 2s x. .. traces 
Hydrochloric acid, free .. s js Poe 12 0'98 
Silica s o ae 2. yx iss og ws 
56°00 
No. (11).—From Te Kauwhanga mud bath, 1} 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. 
