THE HAWKESBURY SANDSTONE. 59 
tions are not at all of this character. The beds are horizontal, 
marly or calcareous, and false bedding is rare ; besides, we should 
expect to meet fresh-water shells, which we do not. This is the 
ease with the Wianamatta beds, which may well have been fresh- 
water. Mr, Daintree has suggested that the whole interior of 
Australia may have been, in tertiary times, a vast fresh-water lake. 
But the formation is found on both sides of the dividing range. 
Besides, we must repeat again that the formation is not like a 
lacustrine one. Mr. Chas. Darwin, i ssage in the “ Natural- 
ist’s Voyage,” which I shall give subsequently, says that the rocks 
Ww 
* Wide Bay sand dunes.—In looking for examples of this forma 
‘Yon in the Colony of Queensland I have seen one oF two phe- 
ed Double Island Point, about 100 miles north of 
. From the west end of the 
cliffs ascend. They are densely covered with a 
