460 Transactions. —G eology. 
It is also, perhaps, worthy of note that the Waikato River, just above 
Cambridge, is at the present time flowing on its oldest and lowest bed of 
rock, whereas at Hamilton it is at present flowing on a bed 80 feet above its 
lowest bed, and supposing these two portions of the district to have main- 
tained the same relative levels one to the other, then, looking at what would 
have been the difference of level of the old river-bed at these two points, 
there is tolerably conclusive evidence that the river between Cambridge and 
Hamilton must at one time have had all the velocity of a mountain torrent. 
As the country lowered relatively to sea-level the river would loose in 
velocity, and so the large quantities of sand which it held in suspense would 
be gradually deposited as shown at Hamilton. 
