460 PROCEEDINGS OF TIIE GEOLOGICAL SOCIETY. [May 16, 



of Hippopotamus (of the two species, I believe, determined by your- 

 self). Altogether, remains of the following were met with : — 



Hippopotamus ; two species. Cervus (two species ?). 



Elephas antiquus. Canis. 



Africanus. Ursus. 



Sus scrofa ? Hyaena. 



Equus. Felis. 



Bos ; two species. Lepus. And others. 



Having this large group of genera, we may say that we have 

 recovered in this cave an entire fossil Sicilian fauna. 



I have also found in these two caves a large quantity of flint im- 

 plements (" de silex en armes ") ; and it is remarkable that we do 

 not generally see them but where there are great deposits of bones of 

 Deer, — never otherwise. Lastly there occur coprolites of Carnivores, 

 and another kind of coprolite, which, I suppose, belonged to Her- 

 bivorous animals. 



I have been fortunate also in detecting teeth of Carnivora in the 

 Cave of OliveJla (" la grotte de l'Olivella"). 



The necessity of having means of comparison at hand induces me 

 to prosecute the study of these cave-bones at Florence, where I shall 

 have the assistance of M. Meneghini. Afterwards I hope to publish 

 the results of the exploration of these caves, and to describe them 

 and the more interesting of the objects obtained. 



Max 16, 1860. 



Frederick Wollaston Hutton, Esq., Lieut. 23rd E. W. Fusileers, 

 Staff College, Sandhurst; John James Lundy, Esq., Primrose Bank, 

 Leith ; E. Farmer, Esq., The Hill, Hornsey ; William Drury Lowe, 

 jun., Esq., Locko Park, Derby; Arthur Beevor Wynne, Esq., of the 

 Geological Survey of Ireland; and James Wyatt, Esq., Bedford, were 

 elected Fellows. 



The following communications were read : — 



1. On the Geology of a Part of Venezuela and o/ Trinidad. 

 By G. P. Wall, Esq. 



[Communicated by Sir E. I. Murchison, V.P.G-.S.] 

 [Plate XXI.] 



For our earliest distinct notions of the physical conformation and 

 geological structure of this portion of the South American continent, 

 we are indebted to the researches of that illustrious observer, 

 Humboldt, who, on his visit to equinoctial America (1799), first 

 landed on the coast of Venezuela, and prosecuted during a period of 

 sixteen months a series of investigations in several departments of 

 that State, thus rendering the most essential service to all sub- 

 sequent travellers ; for whilst some of his conclusions must be mo- 



