Newberry — New Reptiles and Wishes from the Coal. 187 



Creek. The Edesies is allied to a fine specimen from Indiana, figured 

 in Owen's Palcieontology, p. 124, 2nd ed.,and there properly referred 

 to the spine of a Plagiostome. Platysomus has not been found in 

 America before. 



The fish remains from the Waverly sandstone are from a new 

 horizon, having furnished a single species in Northern Ohio, Falmo- 

 niscus Brainerdi. The new specimens consist of teeth of Cladodus 

 and Orodus, with spines of Ctenacanthus, and the tail of one of these 

 Selachians distinctly preserved. This is a great rarity, as the soft 

 and even the cartilaginous parts of plagiostomous fishes are usually 

 decomposed, leaving only the detached teeth, spines, and dermal 

 tubercles. The only other similar cases known to the author, are the 

 tail and fins of a Chondrosteus from the Lias of Lyme Kegis, and the 

 preservation of the form of Thydina in the Solenhofen slates. These 

 specimens are from the base of the Carboniferous series, and therefore 

 much older than the European examples. This tail is very heterocercal. 

 like the caudal fin of some living sharks, and indicates an animal 

 seven or eight feet long. The author hopes to be able to gather from 

 this collection the data for uniting many teeth and spines, now 

 described as distinct genera, into the same species. 



S,E-V"IE"W^S. 



Reoherches Geologiques dans les Parties de la Savoie, du 



PlEMONT ET DE LA SuiSSE VOISINES DU MoNT-BlANC. AveC 



un Atlas de 32 Planches. Par Alphonse Favre, Professeur de 

 Geologic a I'Academie de Geneve. Paris, Victor Masson, 1867. 



THIS work, by M. Alphonse Favre, upon the geological structure 

 of the mountains and valleys surrounding Mont Blanc, consists 

 of three volumes, containing in all 1,488 pages, and is the result of 

 the labours of a large portion of the life of a praiseworthy follower 

 of his distinguished countryman de Saussure, and is a full illustration 

 of his previously published remarkable Geological Map of this 

 region. By exhibiting numerous features and structural details in 

 sections, and other illustrations of the physical relations of the rocks, 

 and by bringing to bear on them those lights of palaeontology, which 

 were unknown to de Saussure, and in which his contemporaries and 

 countrymen Pictet and Loriol have been so distinguished, he has 

 vastly extended and improved the original sketch by his great 

 master. 



Any geologist, who, leaving for the first time the shores of Lake 

 Leman, Taa.j have attempted to reduce to anything approaching 

 classified order the various broken rock-masses which surround Mont 

 Blanc, must have found, to his discomfiture, that they were composed 

 of countless fragments of difterent sorts, thus presenting a confused 

 assemblage, which seemed to defy methodical arrangement. But, 

 with time and patience, and through a succession of researches in 

 the eastern parts of the great chain where the natural formations. 



