156 
Mines and Mineral Statistics, 
below the base of the Llandovery or the Middle Silurian, except 
in the case just mentioned. 
To this epoch I referred fossils found by mein Maneero, in my 
Eeport of ISTovomber, 1851, which was re-published in 18G0, and 
it is satisfactory to find that the examination of a considerable 
amount of specimens by Prof, do Koninck of Liege, who kindly 
undertook the task of describing them, has resulted in a confir- 
mation of my opinion. 
Summing up his review of sixty of these, he says that they are 
in nearly egual divisions of the upper and lower beds of the 
Upper Silurian formation, and that they closely agree with the 
fossils of Europe and America ; that the major portion of the 
former belongs to the Actinozarians and Crustaceans ; and that 
the latter arc nearly all Mollusca ; and that none of the Grap- 
tolites noticed by Prof. M‘Coy in 1861, and more recently by 
Mr. it. Etheridge, junr., from the Victorian strata, occur in the 
collection sent by me. And he concludes, as 1 hare done, that 
at present the existence of fossil beds below the Middle Silurian 
has not yet been determined in New South Wales. 
It is otherwise in Victoria, bnt it may be that some of the 
highly transmuted rocks of the south-west portion of New South 
Wales may yet furnish traces of greater antiquity when 
thoroughly examined. In the last edition of this Memoir, pub- 
lished in is70, 1 mentioned the existence of certain Corals, Trilo- 
bites, Ac., as determined for me in 1858 by the late Messrs. Salter 
and Lonsdale. 
Professor de Koninck is not in antagonism with those geolo- 
gists, but in the fresh series of my fossils he found among the 
trilobites Staurocephalus, Cromus, Proetus and Lichas, in addi- 
tion to Calymeiie, Encrinurus, lllamus, llarpes, and Brontens 
before announced by myself. (See edition of 1870, p. 6., and 
Southern Gold Eields, 1860, p. 286.) 
In duo time I hope to publish all the data connected with 
these and other associated fossils of the Upper, Middle, and 
Lower Pala'zoic formations. 
Nothing lowcrthan Siluro-Devonian, according to Mr. Etheridge 
(in reviewof Mr. Daintree’s fossils, Q.J.G.S., August, 1872), 
had u^) to that time been found in Queensland. But as else- 
where mentioned, I considered the Brisbane slates to be 
analagous with those of the Anderson Creek Gold Eield in 
Victoria, both of which groups I examined personally in situ. 
The latter arc held to he Upper Silurian. 
^ I am inclined to think that there ma}^ yet be found in some of 
the deep gullies and ravines, outcrops of the lower rocks which 
have escaped notice. But the/bssil evidence is, at present, not 
confirmatory of that opinion. 
