SCIENCE AND INDUSTRY. 
Until about 1906 it was generally accepted that the water furnished by the 
bores was really impounded rain-water, which had soaked into the porous 
upturned edges of the basin along its eastern and south-eastern margins; that 
these porous intake beds were bedded beneath layers impervious to water, and, in 
their turn, rested upon impervious material, and that as the intake beds out 
seit ih 
CLAVERTON DOWNS BORE No. 2, QUEENSLAND, 
In 1897 the daily flow was 1,330,000 gallons, while in December, 1910, it had decreased to 
737,400 gallons. 
cropped at a height well above those places where the water was forced above 
the surface through the bores, the pressure causing this uprush was due to the 
hydraulic pressure of the impounded water. 
46 
