30 



THE GEOLOGIST. 



contents of which augur most favorably for their future 

 success. Established in a district possessing many advan- 

 tages for collecting information relative to structural Geology, 

 and surrounded with means for acquiring that knowledge, it 

 is to be hoped that the efforts made by this Society, will be 

 as effective as they are energetic, in inducing the owners and 

 occupiers of CoUieries to contribute towards the formation of 

 a museum of local geology, of the first importance to the 

 public and themselves ; and also towards the special exami- 

 nation of the Lancashire coal district. 



In the volume before us, much valuable information on 

 the subject generally is to be found in the essays by Mr. 

 Binney, whilst the papers on other geological subjects, al- 

 though less intimately associated with the district, possess 

 great intrinsic merit and utility. 



Belemnites des terrains cretaces inferieurs des environs de 

 Castellane^ (Basses AlpesJ, consid^rees Geologiquement et 

 Zoologiquement par J. Duval-Jouve ; Paris, Fortin, Masson 

 et Cie. 4to. 1841. 



This work, in common with others relating to the Science 

 of Palaeontology, which have recently issued from the foreign 

 press, presents the most complete record on the subject to 

 which it relates, and the style in which it is brought forward 

 is alike creditable to the Author and the publishers. 



Tne first portion of the work is occupied with a description 

 of the geological features of the environs of Castellane, the 

 second part being devoted to a statement of the various con- 

 clusions at which naturalists have arrived, as to the nature of 

 Belemnites ; whilst the remainder of the work comprises an 

 elaborate description of the Belemnites of the Basses-Alpes. 



M. Duval-Jouve, intimates in his Essay on the classification of these 

 Cephalopoda, that he recognises the species by the " symmetric forms. 



