ANALYSIS OF WATER FROM ENNGONIA BORE.

Depth, 1,673 feet; flow, 320,000 gallons per diem; temperature, 117° Fah.

ANALYSIS OF WATER FROM BELALIE GOVERNMENT BORE.

Depth, 1,580 feet; flow per diem, 500,000 gallons; temperature, 117° Fah.

ANALYSIS OF WATER FROM KERRIBREE CREEK BORE.

Depth, 1,193 feet; flow, 800,000 gallons per diem; temperature, 105° Fah.

ANALYSIS OF WATER FROM BARRINGUN BORE.

Depth, 1,711 feet; flow per diem, about 170,000 gallons; temperature, 115° Fah.

ANALYSIS OF WATER FROM CORRELLA NO. 1 BORE (PRIVATE).

Depth, 900 feet; temperature, 96° Fah.

ANALYSIS OF WATER FROM CORRELLA NO. 2 BORE (PRIVATE).

The soluble matter (saline) consists mainly of carbonates of soda, carbonate of potash, chloride of sodium, &c.; the "insoluble" of carbonate of lime, silica, trace of carbonate of magnesia, alumina, &c.

ANALYSIS OF WATER FROM CORRELLA NO. 3 BORE (PRIVATE). Depth, about 960 feet; temperature, 102° Fah. ; total solid matter (dried at 220° Fah.), 56 868 grains per gallon.

Soluble saline matter
Insoluble mineral matter

Total solid matter...

Chlorine in combination

Sulphuric anhydride in combination...

Grains per gallon.

45.584

11-284

56.868

4.70

Nil

The soluble saline matter consists mainly of carbonates of soda and potash, chloride of sodium, &c.; the "insoluble" of carbonates of lime and magnesia, silica, trace of alumina, &c.

Both waters, on evaporation, gave a strong alkaline reaction. The compositions of these waters are almost identical with the analyses of that taken from the No. 1 Corrella Bore (private); also two samples from two artesian bores at Bourke. The samples received were too small for a more detailed analysis.

ANALYSIS OF WATER FROM CUTTABURRA BORE.

Depth, 1,723 feet; flow per diem, about 20,000 gallons.

Remarks.-Water clear and free from matter in suspension. To the taste strongly saline. Not suitable for domestic purposes, and useless for irrigation.

ANALYSIS OF WATER FROM MOONGULLA BORE.

Depth, 2,570 feet; flow per diem, about 1,750,000 gallons; temperature, 150° Fah.

The water, on evaporation, yielded 83.972 grains per gallon of total solid matter (dried at 220° Fah.), which, on analysis, yielded as follows:

Remarks. The water gave an alkaline reaction to litmus paper, due to the carbonated alkali present. Contains a very small amount of suspended

matter, which consists almost entirely of carbonate of lime. No poisonous metals detected.

This water contains more carbonate of soda than hitherto found in the waters examined from this district. I am of opinion, however, that with careful use and deep drainage this water is suitable for irrigation purposes.

ANALYSIS OF WATER FROM DUNGLE RIDGE BORE.

Depth, 2,566 feet; flow per diem, about 850,000 gallons; temperature, 122° Fah.; total solid matter (dried at 220° Fah.), 77 140 grains per gallon.

Remarks.-The water had an alkaline reaction, due to the alkaline carbonates present. With careful use and proper drainage, I am of opinion that the water from this bore may be used for irrigation purposes.

ANALYSIS OF WATER FROM NATIVE DOG BORE.

Depth, 475 feet; temperature, 92° Fah.; flow per diem, estimated at 500,000 gallons.

Grains per gallon. In 1,000 parts.

The soluble saline matter consists mainly of alkaline carbonates, chloride of sodium, &c.; the "insoluble" of silica and traces of carbonate of lime and magnesia. The water gave an alkaline reaction before and after evaporation. The quantity of water received in both samples (Native Dog and Youngerrina) was too small to enable a more detailed analysis being made; these waters may be used for irrigation purposes, and are suitable for all domestic purposes.

It will be observed that the saline matter consists mainly of carbonated alkalies, which are known when present in large quantities to exert a serious influence on plant-life by their corrosive action on the young roots, &c. The action can, to a great extent, be remedied by the addition of a small quantity of gypsum to the soil prior to irrigation. The amount of alkaline carbonates present in these waters is much too small to condemn them for irrigation purposes.

ANALYSIS OF WATER FROM YOUNGERRINA BORE.

Depth, 168 feet; temperature, 82° Fah.; flow per diem, estimated at 120,000 gallons.

The soluble saline matter consists mainly of alkaline carbonates, chloride of sodium, &c. The insoluble matter almost entirely consists of silica, with traces of carbonates of lime and magnesia. Water clear, free from odour and matters in suspension. Before evaporation, and after, gave alkaline reaction. Suitable for domestic uses, and stock and irrigation purposes. References. The author desires to express his indebtedness to the following:

(1.) Hilgard, E. W., Prof. Reports of Examinations of Water and Water Supply; University of California.

(2.) Powell, J. W. Eleventh Annual Report for 1889-90; Part II, Irrigation; United States Geological Survey.

(3.) Lahore Public Works Department. Report on Reh, Swamp, and Drainage of the Western Jumna Canal Districts, 1881.

(4.) Boultbee, J. W., Officer in Charge of Water Conservation, for

various Reports.

(5.) David, T. W., Prof.

Artesian Waters in New South Wales;

Royal Society of New South Wales, November 4, 1891.