Ix PROCEEDINGS OF THE GEOLOGICAL SOCIETY. 



and particularly from Jamaica. May not this genus, after all, be 

 that of a terrestrial mollusk, thus indicating the propinquity of 

 dry land, and the existence, during the deposition of the Stringoce- 

 phalus limestone in which they are found, of a terrestrial flora, on 

 which they must have lived ? The authors of the work before us, 

 while still referring the genus to the marine fauna, and placing it near 

 Scalaria or Rissoa, allude to the remarkable resemblance between 

 Schol. crassilabrum and Tomigerus, particularly T. turbinatus (Pfr.). 



At the last meeting of German Naturalists and Phj'-sicians at Got- 

 tingen. Prof. Ferd. Koemer of Bonn made an interesting communi- 

 cation respecting the comparison between the Devonian formations in 

 Belgium and in the Eifel. After describing the Belgian series as 

 the most perfect and the best worked out, he gave the following 

 ascending series of its principal formations: — 1. Unfossiliferous lower 

 quartz rocks. 2. Lower grauwacke beds of the Rhine near Coblenz. 

 3. Limestone. 4. Clay-slates with Bryozoa and CaJceolma (called 

 also Calceola-schists). 5. Dolomitic limestone resembling that of 

 Paifrath. 6. Marl beds, also called Tentaculite-marl. /. Clay 

 slates easily decomposing, full of Goniatites and Cardita retrostri- 

 ata. 8. Dark marly slates, remarkable for containing Spirifer dis- 

 junctus = S. Verneuillii. In Belgium and at iiachen these beds are 

 everywhere immediately overlaid by the Coal-measures containing 

 Productus in great abundance. In Prof. Beyrich's work on the 

 Eifel, he has noticed the existence of only two members of this series, 

 the same as are observed by Murchison and Sedgwick. At a sub- 

 sequent period, however, a third corresponding bed or horizon had 

 been discovered near Gerolstein, viz. Goniatite-beds near Riidesheim, 

 where a bed of marl-slate occurs with Cardiola retrostriata and 

 Goniatites. 



Other localities have been since found containing the fauna of 

 the Paffrath Limestone. Since then. Prof. Roemer has found Spi- 

 rifer Verneuillii in the Eifel, and marls associated with dolomitic 

 limestone. The result at which Prof. Roemer has arrived is, that, 

 with the exception of the Tentaculite-marls, all the Belgian subdivi- 

 sions mentioned above have now been clearly made out in the Eifel. 



We are indebted to the same author for an excellent work on the 

 first period of the Palseozoic rocks, published in the third edition 

 of Bronn's 'Lethaea Geognostica.' Whether the title Kohlen-Ge- 

 birge (Coal formation) is the most appropriate that could have been 

 chosen, I will not now stop to inquire. The work professes to give 

 a general account of the distribution of the Palseozoic rocks through- 

 out the w^orld, with their various subdivisions, and the general cha- 

 racter of the organic remains of their faunae and florae. The author 

 adopts the general divisions of Silurian, Devonian, Carboniferous, 

 and Permian, and has inserted some valuable tables showing the 

 parallelism of various formations in different countries. 



In communicating to this Society a new geological map of the 

 country about Christiania in Norway, by M. Kjerulf, Sir R. Mur- 

 chison has given us some additional information respecting the Silu- 

 rian and Devonian rocks in that district, confirming the views he had 



