No. (2)—From Ta-pui Te Koutu, three-quarters of a mile from Ohinemutu, a large pool, 60 to 80 feet deep. The usual temperature of the water in this pool is from 90° to 100°, with westerly or southerly winds; but if the wind changes to N. or E., the water rises four feet in level, and the temperature increases to 180°, with a strong outflow. Thick masses of slimy Confervoid plants line the bottom of the pool. As received, the water was clear and colourless, with an alkaline reaction.

[The section below cannot be correctly rendered as it contains complex formatting. See the image of the page for a more accurate rendering.]

Excess of silica over what is required to pass these bases as mono-silicates is 5.55.

No. (3)—From Turi-kore or Whakarewarewa, 2(¾) miles from Ohinemutu. The sample was taken from a waterfall which drains from a large pond 300 yards long, the reservoir of a number of boiling springs that are in continual activity. The temperature of this fall is from 96° to 120°. The water is of a dirty brown colour, and is in great repute among the Maoris for the cure of all cutaneous diseases. As received, it was clear and colourless, with a faintly acid reaction, which changes to alkaline on boiling the water.

[The section below cannot be correctly rendered as it contains complex formatting. See the image of the page for a more accurate rendering.]

No. (4)—From Kuirua, in the native village of Ohinemutu, on the shore of Rotorua Lake, where a strong stream flows from a number of hot springs which cover an extent of about 30 acres. This has a temperature of from 136° to 156°, and is so soft that clothes can be washed in it without the use

of soap. It deposited a white flocculent sediment in the bottles, leaving the water clear, with a faint yellow tint, and an alkaline reaction.

[The section below cannot be correctly rendered as it contains complex formatting. See the image of the page for a more accurate rendering.]

No. (5.)—From Koroteoteo, or the “Oil Bath,” at Whakarewarewa.— This is a strong boiling stream, the recorded temperature being 214° from two springs, one of which, surrounded by beautiful sulphur incrustations, throws a powerful jet to a height of 20 feet. The water is distinctly alkaline, or slightly caustic, which is probably the reason for it being termed an “oil bath.”

[The section below cannot be correctly rendered as it contains complex formatting. See the image of the page for a more accurate rendering.]

No. (6).—Otukapuarangi, the “pink terrace” of Rotomahana. This terrace has been built up round a great circular pool 180 feet in diameter, from which there is a strong outflow of clear bright water, having a temperature of 204° to 208°, and depositing siliceous sinter of a delicate pink tint in large quantities. As received, the water was faintly acid, changing to alkaline when boiled.

[The section below cannot be correctly rendered as it contains complex formatting. See the image of the page for a more accurate rendering.]

[The section below cannot be correctly rendered as it contains complex formatting. See the image of the page for a more accurate rendering.]

No. (7.) Manupirua, on the S.E. shore of Rotoiti, a beautifully clear pool 20 feet in diameter, having a temperature of 107° to 110°, at the foot of a high pumice cliff on the shore of the lake. The water is clear, with a bluish tinge, harsh to the touch, and deposits sulphur. This pool has a strong outflow of 40 to 50 gallons per minute, and is reported to have great curative properties.

[The section below cannot be correctly rendered as it contains complex formatting. See the image of the page for a more accurate rendering.]

No. (8.)—From Te Kauwhanga, 1(¼) miles from Ohinemutu, a powerful sulphur bath, having a temperature of 204°. The water as received was clear and colourless, with a distinct acid reaction, and evolving an offensive odour; it deposited a brownish sediment on being boiled. This bath is reputed to have great curative properties, and is known to tourists as the “Pain-killer.”

[The section below cannot be correctly rendered as it contains complex formatting. See the image of the page for a more accurate rendering.]

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

[The section below cannot be correctly rendered as it contains complex formatting. See the image of the page for a more accurate rendering.]

No. (10).—From Perekari, 1(½) 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.

[The section below cannot be correctly rendered as it contains complex formatting. See the image of the page for a more accurate rendering.]

No. (11).—From Te Kauwhanga mud bath, 1(¼) 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.

[The section below cannot be correctly rendered as it contains complex formatting. See the image of the page for a more accurate rendering.]

No. (12).—From Ariki-kapakapa, 2 miles from Ohinemutu, a small pool with a strong outflow, having a temperature of 160°. It deposits sulphur, and is surrounded by a great number of other baths and mud volcanoes. It is reported to have powerful curative properties. It was colourless as received, with a heavy deposit of silica, and an acid reaction, which was permanent at its boiling point.

[The section below cannot be correctly rendered as it contains complex formatting. See the image of the page for a more accurate rendering.]

No. (13).—Sulphur Bay Spring, on the edge of Lake Rotorua, formed by innumerable small jets forced up through sand, having a disagreeable odour, and a temperature from 90° to 100°. This bath is reported to have a powerful action on the skin, owing no doubt to the large quantity of sulphuric acid it contains. As received, it was colourless, with a slight flaky sediment.

[The section below cannot be correctly rendered as it contains complex formatting. See the image of the page for a more accurate rendering.]

[The section below cannot be correctly rendered as it contains complex formatting. See the image of the page for a more accurate rendering.]

No. (14).—From Ti Kute, the “Great Spring,” 10(½) miles from Ohinemutu, a pool three-quarters of an acre in extent, having a temperature varying from 100° to 212° in various parts. It boils furiously, and dense volumes of steam are continually rising from it. The water is of a muddy brown colour, and contains a large proportion of sulphuretted hydrogen, and is reported to be wonderfully efficacious in cases of rheumatism and cutaneous disease.

[The section below cannot be correctly rendered as it contains complex formatting. See the image of the page for a more accurate rendering.]

No. (15).—From Te Mimi, Okakahi, a waterfall having a temperature of 90° to 112°. It drains from the preceding (No. 14), and only differs from it in being more dilute, and having a larger proportion of sulphuric acid, and less sulphuretted hydrogen.

[The section below cannot be correctly rendered as it contains complex formatting. See the image of the page for a more accurate rendering.]

[The section below cannot be correctly rendered as it contains complex formatting. See the image of the page for a more accurate rendering.]

I give below in a tabular form the respective quantities of the several substances found to be present in a gallon of each of these waters:—

Note.—The phosphoric acid present is omitted from this table, but appears in the detailed account of these waters.

None of them in their natural state gave any indication of the presence of either iodine or bromine, nor were any such indications observed for those waters which, for more rigorous testing, I evaporated to a small bulk. The waters I thus treated especially for these elements are Nos. 1–6 and 10–14, and as they represent all the kinds of waters of this series, I think it may be safely concluded that these substances are either absent, or, if present, are in quantities so small that they will not exercise any appreciable effect upon any one using these waters.

The metal lithium was found in waters Nos. 2, 7, and 9, but only in such small quantity as not to be readily detected, except spectroscopically.

As this is a substance having active medical properties, even when administered in small quantities, if continuously, it is often an important matter that its presence in any mineral water should be known to those who use it.

A perusal of these analytical results will show that the waters in question belong to two distinct classes—the alkaline and acidulous.