44 Reviews—Etheridge’s and Jack’s Australian Catalogue. 
importance, to which only a brief reference could be made. “We 
are taught by the researches of the various writers quoted the rapid 
extinction of the Carboniferous Molluscan fauna after the final 
deposition of the Upper Limestone Group, its struggle on through 
the Millstone Grit, its occasional appearance in the Coal-measures, 
and final extinction before the deposition of the Upper Red Sand- 
stones.” 
In alluding to the papers published to prove the marine deposi- 
tion of the Coal-measures, Mr. Etheridge remarks “that the special 
occurrence of marine bands in the measures prove only, and specially, 
the occasional occurrence of truly marine conditions. We must look 
upon the sediments in which Anthracosia, Anthracoptera, Anthra- 
comya, appear as either of brackish or freshwater origin. The 
probability appears to be, speaking purely from personal experience 
in a climate where creek and brackish vegetation attains a luxuriant 
growth, accompanied by a rapid humus-accumulation of soil, that 
the brackish-water theory deserves more attention than any other 
which has yet been advanced.” 
This address will be a valuable addition to paleontological litera- 
ture, and of practical assistance to those interested in the study of 
the fossil Carboniferous Mollusca. the) ae 
IlT.—A Catanocus or Works, Papers, Reports, anp Mars, oN THE 
GroLtocy, Patmontonocy, Minine, METALLURGY, ETC., OF THE 
AUSTRALIAN ConTINENT AND Tasmanta. Compiled by R. 
Erueriper, Junr., and R. L. Jack, F.G.S. (London, 1881: 
Stanford, Charing Cross.) 
yay CATALOGUE like the present, when carefully compiled, is of 
considerable value, for the bibliography of geology and allied 
sciences has of late years reached such formidable proportions that 
any attempt to master the literature, without such aid as the above 
work, would be futile. 
The work is evidently the result of much conscientious labour on 
the part of the authors, and those persons interested in the geology 
and mining of the Australian continent will be grateful to Mr. R. 
Etheridge, and his colleague, Mr. R. L. Jack, for a list of works 
relating to that country and the adjacent Tasmanian land. 
The present volume may be partly considered as a further ex- 
pansion of the list of references given at the end of the valuable 
“Catalogue of Australian Fossils,” by the first-named author some 
years since, and noticed in this Magazine (Dec. 2, Vol. V. p. 567). 
Scattered through so many periodicals or in separate works, the 
information relating to the above subjects is rendered easily acces- 
sible as now collected in one volume, while at the same time it 
shows the large amount of work already completed, bearing on the 
geology and mining industries of our Australian colonies. 
More than 2000 references, which are alphabetically arranged 
under the authors’ names, except when the work is anonymous, aud 
