COEEESPONDENCE. 
65 
Corner, and at Cooloodee. It is about fifty miles due-east of Adelaide, 
and about 35° south latitude, and 139° 20' east longitude. I found it 
while makinof my surveys for the direct eastern line of railway from 
Adelaide to the Eiver Murray (see Council Paper, jSo. 47, Septem- 
ber 10th, 1858, S. A.). 
The Eiver Murray and its tributaries drain an immense district 
in New South Wales, Victoria, and South Australia, discharging it- 
self into the Lake Alexandria in South Australia; thence to the sea 
it is navigable for 1500 miles. 
[Our readers are referred also to the Journal of the Geological 
Society, Xo. 63, August, ISGO, pages 252-261, for some account of 
the geology of the South-Australian district above referred to. — 
Edit. Geologist.] 
COBEESPOXDEXCE. 
Tlie Accumulation of Cave Deposits. 
Deae Sie, — Without offering any opiniou on the Eev. H. Eley's spe- 
culation, in the December Xumber of the Geologist, on the mode of " The 
Accumulation of Cave Deposits," I presume it is quite safe to conclude 
that it could only apply, at most, to caverns wliich were inhabited by 
animals. 
Xow, though we have satisfactory evidence that some caverns — Kent's 
Hole near this place, for example — were the homes of carnivora, others, 
and some of them very famous, are entirely destitute of any such indica- 
tions, whilst their distinctly stratified deposits were certainly due to the 
long-continued action of water. 
Amongst the numerous caves near the sea-level which occur in the lime- 
stone cliffs between Berr}^ Head and Mudstone Bay, near Brixham, there 
is one into which the sea only enters at spring-tide high-water, or during 
very heavy gales. It is only accessible from the sea, and is situated at 
the apex of a small cove, the mouth of which is a passage, probabl}^ about 
twenty feet wide, between two walls of limestone ; within it is somewhat 
wider. Except at high-water, a small, steep, terraced, shingle beach lies 
between the sea and the mouth of the cavern. The cove is simply a gallery, 
at least eighty feet long, about four feet wide, in some places not more 
than three feet high, but commonly high enough for a man to stand erect. 
In fact, it is nothing more than one of the north and south joints, or lines 
of fracture, so common in the district, eroded into a tunnel. 
A considerable drip of water, apparently free from earthy matter, enters 
through the roof. 
When recently visiting it, I found the floor, consisting of fine sea sand, 
more or less covered with fresh seaweed, which was most abundant at the 
inner end. About halfway in, I picked up several disjoined bones, pro- 
bably parts of the same animal, undoubtedly a terrestrial mammal, and, 
judging from the state of the epiphyses, a young individual. I have still 
some of them by me. With one exception they are quite free from all 
marks of abrasion. 
The sea had also carried in some evidences of the existence of man ; 
VOL. Y. K 
