THE 
TASMANIAN JOURNAL 
OK 
NATURAL SCIENCE. 
OCTOBER, 1846. 
Art. I. On the occurrence of Trilobites in the Protozoic Rocks 
of New South Wales. By the Rev. W. B. Clarke, M.A., 
F.G.S., &c. 
In the address of the President, Sir R. I. Murchison, to the Geo¬ 
logical Society of London, on 18th February, 1842, occur the 
following remarks* :— 
“ In that singular country, Australia, in which so large a por¬ 
tion of the existing terrestrial and marine fauna differ so essentially 
from those of every other region, it is curious to detect in the 
rocks many fossil Corallines and Mollusks closely analogous to the 
Silurian species of the British Isles; thus adding another proof 
to many we already possess, that the same climatological and 
physical conditions were very widely spread during the earlier 
ages of the earth.” 
And in a note it is added : — 
“ Although Trilobites, so characteristic of the protozoic era, 
• Proceedings of the Geological Society, vol. iii. p. 645. 
VOL. III. NO. I. 
B 
