114 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Jan. 11. 



nites. It appeared that there were large tracts in which the rocks 

 seemed to be almost destitute of fossils, which rendered their classifica- 

 tion extremely difficult; and great credit was due to the author for his 

 exertions in a country where unfortunately so Little interest is taken 

 in geology. He mentioned that some of these unfossiliferous rocks 

 had been classified as Silurian by some Prench geologists ; but for 

 this there was not the slightest evidence. It appeared far more pro- 

 bable that they were of Jurassic age. Some red beds, which had 

 been called Triassic, were also in all probability Tertiary. 



Mr. GwYK Jeffeeys, who had examined several collections in Spain 

 and Portugal, stated that he had been much struck with the absence 

 of newer Tertiary fossils, the latest being of Miocene age. These 

 latter presented a tropical aspect, and differed from the mollusca now 

 inhabiting the neighbouring seas. 



Mr. Blake was not satisfied with the determination of the Am- 

 monites, which appeared to him to be Cretaceous rather than Jurassic 

 forms. 



Mr. Tate observed that the French geologists had determined the 

 existence in Spain of the whole Jurassic series, from the Middle Lias 

 to the Portlandian beds ; and, judging from the photographs, he 

 should consider the Ammonites to be Middle Jurassic. 



Mr. Both Daavkins cited the remains of Rhinoceros etruscus, pro- 

 cured by the late Dr. Palconer at Malaga, as affording evidence of the 

 presence of beds of Pliocene age in that district. 



Prof. Duncan mentioned that corals of the genus FlaheUum, such 

 as were found in the Tejares clays, had been obtained in recent deep- 

 sea dredgings in the Atlantic, and also occurred among specimens 

 brought from Japan. 



