338 W. B. Clarke on the Sedimentary 
and accumulation from less powerful agency than that of a 
general rush of water. Itis not, however, to be doubted, that 
there is an enormous amount of gold yet untouched in numer- 
ous places in New South Wales, not only in the quartz lodes 
(or reefs), but in gullies and plains where alluvial gold diggings 
will yet be discovered. 
The distinctive differences in material mineral wealth between 
Victoria and New South Wales are not altogether confined 
to gold, or tin, which latter metal is well represented in the 
New South Wales Court ; but coal, iron and copper, and per- 
haps lead, also exhibited, prove more than an equivalent of the 
great amount of gold at present in Victoria. 
At the Universal Exhibition of 1854 the present writer ex- 
hibited a collection of rocks and fossils, illustrating the whole 
of the geological formations of Australia, and these were 
enumerated in their stratigraphical order in the published cata- 
logue. On this occasion, it has not been possible to complete a 
remarks on the various geological epochs as they represent 
themselves in New South Wales, with a brief statement as to 
their connection with other portions of Australasia. 
Azoic anp “ Meramorpuic” Rocks. 
tion, 
nd, ‘as well as along the Cordillera, and in indepen- 
s along the coast. In Western Australia, where an 
region 1s occupied by granites, and the older forma- 
anites th ves remain bare, these patches are found on the 
ks of the granitic bosses, and at extremely wide intervals ; 
are represented only by small patches of slates, whilst the ~ 
