446 Transactions.—Chemistry. 
which would liberate this element. I may state here that I have not yet 
heard of the existence of free (native) iodine being authoritatively announced. 
This water comes under the sub-class alkaline chlorinated water, and 
therefore resembles those of Wiesbaden, Kreuznach, and Aix-la-chapelle 
of the continental waters, and those of Cheltenham, Harrowgate, and 
Leamington of the English ones. It is, however, remarkable for its 
generally superior strength over the English water of this class, and there- 
fore should manifest medical effects in a corresponding proportion when 
properly tested. 
15. Mineral Water from northern boundary of Wellington. 
Another water of the same class as the above, but one considerably less 
iodized, is that from a mineral spring occurring about the Wellington 
boundary of the run of Mr. Douglas McLean. Its characters are as 
follows :—Somewhat turbid, has a decidedly saline taste, and is feebly 
alkaline to test paper. Its principal constituent is chloride of sodium ; it 
differs from sea-water, however, in containing a notable quantity of car- 
bonate of soda; also in giving a very distinct reaction of iodine to the 
proper tests for this substance, even when these are applied to the water as 
unconcentrated. The following results of its analysis are expressed in 
grains per gallon :— 
Soda m m ia p dis ea 219340 
Potash ix = ží ee as ‘es 2:833 
Lime s : : 2:219 
Magnesia a ; : 7:158 
Lithia 4 traces 
Iron oxides . vx + > 1-481 
ca s . * ta * 6:418 
Chlorine ss ze . S409363 
Sulphuric acid : P 115 
Carbonic acid e a K 18:444 
Iodine and bromine .. nR ne A zs traces 
498 -940 
These results allow of = iai in the following manner :— 
Chloride of sodium un 2. pen p94 
Chloride of imum. Ys A m n 4:448 
Iodides and bromides s m ER not estimated 
Sulphate of soda s vs m Es en 1:269 
Carbonate of soda s "m E PO s 18:604 
us magnesia oe ee ee = 15-031 
» lime x te um is me 3-961 
= iron e ws x x a 2°386 
oe 7 oe of ee ee 6:418 
diua a 
