268 Literary Announcements. 



to the determination of some Rocks of the Chalk Formation:. 

 By M. Alexander Brongniart. The latter contains lists of the 

 organic remains in the Gray Chalk and Chalk Marie, (^craie tufau) 

 and Green Sand (glauconie craieuse, crate Chloritee) of Rouen, 

 Havre, and their vicinity ; of the environs of Perigueux ; of the 

 Perte du Rhone near Bellegarde; and of the rocks and mountains 

 of Fis, Sales, &c. forming part of the Buet Chain in the Savoy 

 Alps. They are identified by reference to the figures of Sowerby, 

 A. Brongniart, Defrance, and others. A lithographic plate of the 

 fossils of the marie beds of the compact Jura limestone, and 

 another of the Montague des Fis, accompany the paper. 



Art. XXXIX. Literary Announcements, 



Deshayes' Coquilles Fossiles des Environs de Paris. 



We are happy to announce the commencement of a work, en- 

 titled " Description des Coquilles fossiles des Environs de Paris, 

 par G. P. Deshayes, Membra de la Societe d'Histoire Naturelle 

 de Paris." From what we know of the extensive collections, the 

 numerous discoveries, and the considerable resources and talent of 

 the author, we anticipate a very complete account of these in- 

 teresting and beautiful fossils, particularly those of the Tertiary 

 beds. The work will appear in monthly numbers in 4to. 



Temminck's Mammalogie. 



The celebrated Temminck has in the press a work, entitled 

 *' Monographies de Mammalogie," to contain elucidatory observa- 

 tions upon many Quadrupeds, respecting which there have been 

 doubts; and descriptions and figures of many new species : to be 

 published in numbers, in 4to, and not to exceed two volumes. 



