480 SCIENCE PROGRESS. 



Fenouillet. Lorenzo (10) describes in detail the folds in 

 the neighbourhood of Lagonegro in the province of Basili- 

 cata in the South of Italy. The anticlinal and synclinal 

 axes run, as might be expected, nearly north to south. 



Salt deposits of the Basses Pyrenees. — In the South-west 

 of France, near Bayonne, there are a number of salt- 

 bearing deposits which have been the subject of consider- 

 able discussion. According to Seunes, 1 who has described 

 the area in some detail, they belong to the Trias ; but this 

 view, which is based on their resemblance to rocks of 

 known age in the Pyrenees, has not been universally 

 accepted. Dufrenoy found Cretaceous fossils in them ; and 

 Macpherson has shown, by microscopic examination, that 

 the Cretaceous marls of the neighbourhood are continuous 

 with the "glaises bariolees" or salt-bearing beds. Accord- 

 ing to Gorceix (n) the salt deposits are all in close con- 

 nection with the ophitic outbursts of the area. These 

 ophitic outbursts took place along a number of lines 

 which radiate from a point three kilometres west of Labas- 

 tide Clairence, and which he believes to be faults ; and the 

 salt-bearing deposits occur upon these lines also, generally 

 in fact where the ophite is exposed. When the Cretaceous 

 Flysch occurs close to an ophitic outburst it is converted 

 into "glaises bariolees," and he believes that the "glaises 

 bariolees " served as basins in which the salt water of the 

 sea collected. The salt water on evaporation, in which 

 it was no doubt assisted by the warmth of the eruptive 

 material, gave rise to the present salt deposits. 



TRIAS. 



The Triassic system in general has been made the sub- 

 ject of an interesting paper by Wohrmann (12). One of the 

 conclusions at which he arrives is that the sediments of the 

 German and Alpine Trias were laid down in connected 

 seas and not in separate and distinct basins. He finds 

 more species common to the North and South Alps than 

 has generally been supposed. The most considerable eleva- 



1 Ann. des Mities, ser. 8, vol. xviii., pp. 209-458, 1890. 



