PETERS TRACHYTES. MORLOT — IRISH ELK. 35 



On the Trachytes near Pesth, Hungary. By Prof. Peters. 



[Proceed. Imp. Geol. Instit. Vienna, June 1857.] 



After a careful examination of the trachytic area between St. An- 

 drae and Vissegrad, near Pesth, Prof. Peters has succeeded in deter- 

 mining the age of this trachyte. The trachytic mass is surrounded 

 by a great Neogene deposit, consisting of the Lower Plastic Clay, 

 sand, and Leitha-limestone, like those around Buda. In the vicinity 

 of the trachyte the Leitha-limestone has generally given place to 

 trachytic tuff, with a large proportion of organic remains in a cal- 

 careous state. The lower sands and clays (corresponding to the 

 sand and Tegel of the Leitha-limestone of the Vienna Basin) present 

 no vestige of any trachytic substance. Hence it may be inferred 

 that eruption of the trachytes was coeval with the formation of the 

 Leitha-limestone proper. 



The Diluvial deposits have likewise evidently been modified by 

 trachytic influence. The Loess is mixed with trachytic gravel : a 

 deposit of tuff, with Diluvial fossils, near St. Andrae, is full of con- 

 cretions and small veins of brown opal and siliceous minerals. 



An unsuccessful search for fossil fuel in the middle neogene clay 

 of Megyer has led to the discovery of abundance of Cerithium mar- 

 garitaceuMy a form nearly allied to C. calcaratum and C. striatum^ 

 both occurring in the eocene clay of the lignitiferous district around 

 Gran. [Count M.] 



On the Cervus euryceros. By Prof. De Morlot. 



[Proceed. Imp. Geol. Instit. Vienna, June 1857.] 



JM. DE IMoRLOT thus anuounccs the discovery, by MM. Uhlmann 

 and Jahn, of remains of the gigantic Elk {Cervus euryceros^Mega- 

 ceros hibernicus) in association with works of human industry. On 

 partially draining, in 1856, a small lake near Moosseedorf (Canton 

 of Berne), an area of about 70 feet in length and 50 feet broad along 

 the bank of the lower extremity of this lake was found to be paved 

 more or less closely with posts of oak, aspen, birch, and elm, driven 

 through two beds of peat into the marly bottom of the lake. A 

 peat-bed, 3 or 4 feet thick, of exclusively vegetable origin in its upper 

 part, includes many relics of human industry and art in its lower 

 portion. Dr. Uhlmann collected nearly a thousand specimens ; viz. 

 fragments of pottery, stone-chisels, stone-arrowheads, pieces of 

 cut bones, and perforated bear-teeth, without any traces of metallic 

 objects. The lower ends of the posts have evidently been also worked 

 into their pointed shape by the means of stone-tools. The upper 

 portion of the bed containing these remains exhibited traces of com- 

 bustion and contained carbonized grains of barley. 



Together with the above-mentioned works of art were found many 

 fragments of the bones both of domesticated and of wild animals ; viz. 

 horned cattle, horses, swine, dogs of various size, goats, sheep, cats, 

 elks, stags, aurochs, bears, wild boars, foxes, beavers, tortoises. 



