92 RESEARCILE COMMITTEES. 
chloride, 4:44 ; sodium sulphate, 1:26 ; sodium carbonate, 18°60 ; 
magnesium carbonate, 15°83; calcium carbonate, 3:96 ; carbonate 
of iron, 2°38; silica, 6°41. Contains both iodine and bromine. 
Ohaeawai, Auckland.—J. Hector. New Zealand Official Year 
Book, 1896, p. 426. 
Acid aluminous water.—Temperature 60°—116° F. Total 
solids, 134-4 ; deposits sulphur and alum on cooling. Mercury 
in form of vapour is given off, which deposits cinnakar and 
metallic mercury. 
Ohura.—W. Skey. XXth Colonial Museum and Laboratory 
Report, p. 52. 
Chlorinated chalybeate water.—Total solids, 578-66 grs. per 
gal. ; sodium chloride, 495-32 ; potassium chloride, 4°20; calcium 
chloride, 55:96; magnesium chloride, 1:84; magnesium iodide, 
62 ; calcium sulphate, 2:04 ; ferrous carbonate, 10°21 ; magnesium 
carbonate, 5°40 ; silica, 5-07. 
Onekiniki.rW. Skey. XXIXth Colonial Museum and 
Laboratory Report, p. 19. 
Chlorinated saline water.—Total solids, 198°95 grs. per gal. ; 
sodium chloride (with a little potassium chloride), 155-78 ; 
magnesium chloride, 1:14; magnesium iodide, traces; sodium 
sulphate, 14:26; calcium sulphate, 3°47; sodium carbonate, 
12-76; calcium carbonate, 1:19; iron and alumina, :21 ; silica, 
10:14 ; sulphuretted hydrogen, -34 grs. per gal. 
Onetapu Desert, Auckland (Wangaehu River)—W. Skey. 
Transactions, New Zealand Institute, vol. 1, p. 28; Jbid., 
vol. x, p. 424. 
Alum water, with acid reaction.—Total solids, 456 grs. per gal., 
mainly potash alum, and magnesium, and ferrous chlorides. 
Otira Gorge.—G. Gray. Transactions, New Zealand Institute, 
vol. xxil, p. 495. 
Sulphuretted and siliceous water.—Specific gravity at 60° F. 
100022 ; temperature, 87° F. (air, 61° F.) ; Total solids, 12-46 
ers. per gal. ; potassium sulphate, 33; sodium sulphate, 3-99 ; 
sodium chloride, -40 ; sodium sulphide, *45 ; sodium silicate, 4°26 ; 
calcium silicate, °34; calcium carbonate, 1:14; magnesium 
carbonate, -29; alumina, -21 ; free silica anhydride, 1:05 ; iodine, 
bromine, and lithium absent. 
