CXXXII. IRRIGATION GEOLOGICALLY CONSIDERED. 
able oscillations. At this station there is a well 30 feet 
deep, from the bottom of which a bore has been put down 
to a total depth from the surface of 1,680 feet. The water 
rises in the well to a mean height of about 17 feet below 
the surface. The temperature of the water has been 
recorded by the station manager as 120° Fahr. The water 
rises and falls in the well to a varying extent (between 3 
and 4 feet), and the periods of its oscillation are also vari- 
able, the period between two successive ebbs or flows 
ranging from about 9 hours to 173 hours. Through the 
kindness of Mr. H. C. Russell, a tide recorder was placed 
in the well, and was put in charge of the caretaker of the 
nearest Government well. Owing, however, to the fact 
that he had to travel 12 miles every time he attended to 
the tide recorder, the observations were not as reliable as 
could have been desired, and as he left the district shortly 
afterwards, further observations were abandoned on account 
of the impossibility of getting any one to attend to the 
gauge. 
The accompanying table and diagram No. 1 Plate 23 
represents the oscillations of the water as recorded by the 
tidal gauge for a period from 28th February to the 18th of 
May 1897. During this period the variation in time between 
successive ebbs and flows was from about 9 to 14 hours, 
while the rise and fall of the water varied from about 3 ft. 
Time between suc- Rise and fall of 
Observer. cessive “‘high tides.”’ water. 
Maximum] Minimum.||Maximum (Minimum. 
hours. hours. eee aS 
E. F. Pittman, 6th to 12th Nov., 18 163 Tait pec) 
1894. (No. 2 Diagram, Pl. 24, 
lower right hand corner.) 
Caretaker, 29th May to 2nd June, 12 
1896. (No. 2 Diagram, Pl. 24, 
lower left hand corner.) 
Caretaker, Feb. 28th to May 18th, 144 8 
1897. No. 1 Diagram, Pl. 23, 
Jarge sheet.) 
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