385 
Jukes on Australia, 
There are very thick masses of gravel, consisting of pebbles as 
large as the fist, accumulated on the sides of the Derwent River, 
at some places, and Count Strzelecki mentions great accumula¬ 
tions of loose sand, from beneath which he procured a large 
Cypreea.* This was at Newtown, a short distance from Hobarton. 
B. Norfolk Bay and Tasman’s Peninsula. 
The principal mass of Tasman’s Peninsula appears to be 
columnar greenstone, forming the highest and most rugged of 
its hills, the gigantic perpendicular cliffs of Cape Pillar and 
Cape Raoul, and the intermediate shores round the entrance to 
Port Arthur. Just to the eastward of the mouth of that harbour, 
a mass of the sandstone of the palseozoic formation, a quarter of 
a mile across and 200 feet high, may be seen resting against 
these perpendicular cliffs of columnar greenstone with its beds 
quite horizontal and apparently unaltered. 
Point Puer, one of the projections inside the port, is composed 
of a white compact, rather argillaceous sandstone, which among 
others contains the following fossils :_ 
Producta rugata. Pterinea macroptera. 
Spinfer subradiatus. Orthonota compressa. 
-crassicostatus, MSS. sp. n. Allorisma, n. s. 
Stokesu. Pachydomus carinatus. 
Vespertiho. Pecten squamuliferus. 
Eagle Hawk Neck, the connecting link of Tasman’s and For¬ 
rester s Peninsulas, is one of the celebrities of Tasmania, on 
account of the peculiar jointed structure of its rocks, forming 
what is called “ the tessellated pavement.” The rock is a very 
hard, brittle, fine-grained and compact grey sandstone or grit¬ 
stone, lying in a horizontal position. It occasionally contains 
pebbles of granite, porphyry, or quartz rock. The rocks abound 
in fossils, especially at the south point of Pirate’s Bay. Among 
others I collected fine specimens of the following :_ 
Fenestella internata. Spirifer subradiatus. 
Products rugata. - Vespertilio. 
bpirifer crebristriatus. Platychisma Oculus? 
Darwinii. Pachydomus carinatus. 
-avicula. 
* A,,e l ar £o Cyprasa (C. eximia) described by Count Strzelecki, was found at Franklin 
Village, near Launceston, and not at New Town.— Ed. Tasmanian Journal. 
