PalcBOZoic Fossils of New South Wales. 365 



curring in the lower or Upper Llandovery, and 27 in the upper or 

 Ludlow group. In the former the fauna is almost exclusively 

 MoUuscan and Crustacean, whilst in the latter Corals and Crustacea 

 chiefly abound. 



Passing to the Devonian, we find that 67 species are described, 

 of which 30 are considered as new, and have their analogues in 

 European or American Devonian rocks, except four, Archceocyathus ? 

 Clarkei, de Kon. ; Billmgsia alveolarei, de Kon. ; Niso ? Darivimi, de 

 Kon. ; and Mitchellia striatula, de Kon. The Upper Devonian series is 

 indicated by the presence of such species as Strophalosia productoides, 

 Murchison ; Chonetes coronata, Conrad ; BhyncJionella pleurodon, 

 Phill. ; Spirifer disjunctus, Sow. ; and Aviculopecten Clarkei, de 

 Kon. The chief remaining forms, especially those from the black 

 limestone of Yars, indicate a somewhat lower horizon than the 

 preceding five species, but at the same time more recent than 

 the horizon represented by Calceola sandalina, Lamk. Prof, de 

 Koninck states that Archceocyathus'^ Clarkei appears to take, in 

 Australia, the place occupied by Receptacidites Neptimi, Defr., in 

 certain European Devonian beds, especially those of Belgium. 

 Under the name of Mitchellia is described a new and interesting 

 genus of the family Buccinidce, in which the mouth is elongated and 

 much contracted. The occurrence of this genus in conjunction with 

 a species of Niso, usually considered as a Tertiary genus, are the 

 only anomalies to be noticed in the composition of the New South 

 Wales Devonian fauna, as compared with that of Europe. 



To the Eev. W. B. Clarke, M.A., F.E.S , through whose almost 

 unaided exertions this collection was placed in Prof, de Koni nek's 

 hands, Palaeontology owes a deep debt of gratitude. K. E., Jun. 



leiB^^IIE^V^S. 



L — Exploration of the Colorado River of the West and its 

 Tributaries. Report to the Secretary of the Smithsonian 

 Institution. By J. W. Powell. 4to. pp. 292, with 80 Illus- 

 trations, a Map, and Sections. (Washington, Government 

 Printing Oface, 1875.) 



THIS is a large and handsome quarto volume, unexceptionable as 

 to printing, and adorned with a quantity of really excellent 

 views on wood, taken aj^parently from photographs, which for 

 artistic efi'ect and execution are of a very high order : indeed many of 

 them seem stamped with the grandeur of the scenes they represent ; 

 and some, reminding one forcibly of the weird style of Gustave 

 Dore, exhibit strongly the power with which really good illustrations 

 can convey and enhance the appreciation of Nature's grandest physico- 

 geologic features.^ 



The laborious operations of which Professor Powell's Report is 

 the result were spread over the years 1869, 70, 71, and 72 ; so that 



^ To point this remark, we might allude to the sadly different impression produced 

 by comparing the -wood-cut illustrations of Mr. Drew's new book on Kashmir, 

 published by Stanford, London. Has the talent for illustration forsaken us for 

 America ? Surely not. 



