DO GEOLOGY. 



la Foret-Noirc. [Ancient Glaciers of the Wiese Valley, Black 

 Forest.] Arch. Sci. Phys. Nat. t. Iv. pp. 136-167, pi. iii. 

 *' The glacier recognized in the main valley and in the tributary 



valleys of the Wiese, especially those of Prag and Muggenbrunn, stopped 



about Schonau." 



Giorgi, Dr. Q. De. ISTote geologiche suUa provincia di Lecce. [Geologj- 

 of Lecce Promontory, S. Italy.] Yol. i. Lecce. 



Describes the orography of the Taranto promontory ; the coast, its 

 movements and the action of the sea. The formations include the 

 Hippurite Limestone (U. Cretaceous), Eocene, Pliocene, &c. Pliocene 

 palaeontology fills the latter half of the volume. Scguenza's divisions 

 of " Zanclean " and " Astian " for the Older Pliocene are adopted, and 

 parallels drawn with beds in other parts of Italy. (From notice in Boll. 

 11. Com. geol. Ital. t. vii. pp. 249-252.) E. B. T. 



. La Terra rossa nel Leccese. [Terra rossa.] Boll. JR. Com. 



geol. Ital. t. vii. pp. 294-297. 



States that the " terra rossa " or " bols " of the Ostuni district, &c. is 

 a mud rich in ferric oxide (15 to 20 p. c. sometimes) and alumina, and 

 that it is without animal remains. It has a variable thickness of 1-10 

 metres, and usually covers the Cretaceous ox Eocene rocks, rarely the 

 Miocene or Pliocene. It occurs filling cracks or funnel-shaped cavities, 

 &c., as in Dalmatia, &c. E. B. T. 



Gosselet, Prof. Jules. Le Calcaire de Givet. [The Givet Lime- 

 stone.] An7i. Soc. Oeol. Nord, t. iii. pp. 36-75 ; 6 figs, in text. 



Part 1 treats of this series as shown on the borders of Ardeniie, 

 between the Sambre and the Meuse. It is here characterized by an 

 abundance of Stringocejohalus Burtini^ CyatJwj)7tylln7n quadrigemirmm , 

 and Spirifer mediotextus. Towards the top there is a band full of 

 Stromatopora, in which the foregoing fossils have not been found. At 

 Macon and Couvin there is, below the Givet Limestone, a bed with 

 Orthoceras nodulosum, which probably is near the Calceola schists. On 

 the Meuse, above the Givet horizon, there are beds with Spirifer Ver- 

 neuili and Aviculopecten Neptuni, which are allied to the Frasne series. 

 A detailed critical list of the characteristic fossils follows. 



Part 2 treats of the Givet series on both sides of the Silurian ridge 

 of Condroz and of the great Fault. Concludes that : — 1. Between the 

 Sambre and the Meuse and on both sides of the Condroz ridge the 

 Eifelian Limestone of Dumont must be divided into two, the lower 

 division only corresponding with the Givet Limestone, the upper repre- 

 senting the Frasne Limestone. 2. The Givet Limestone is constant on 

 the 'N. border of the Dinant basin, and thickens from E. to W. ; on the 

 S. border of the Namur basin it is also constant, but thin ; on the 

 Sambre it is wanting. 3. The Frasne Limestone is thicker and more 

 important than the Givet Limestone, and very constant and regular. 

 4. Both these Limestones are similar on both sides of the Condroz 

 ridge ; the sea, therefore, probably was over that ridge, though it does 

 not follow that it deposited any thing there. G. A. L. 



