92 GEOLOGY. 



The throw and hade of this fault are unknown ; and Prof. Dewalque 

 and others in discussing it [p. Ixxix] suggest that probably it is a mere 

 fissure. Gr. A. L. 



Mallard, Er. Des oscillations seculaires des Glaciers et des variations 



qu'elles accusent dans les elements meteorologiques du Globe. 



[Secular Oscillations of Glaciers and the Yariations to which they 



point in the Meteorological Agents of the Earth.] Bull. Soc. Geol. 



France^ 3 ser. t. iv. pp. 69-73. 



Some Alpine glaciers are decreasing, whilst others are extending. 



In the Alps each successive year becomes warmer and at the same time 



more snowy. Thence the inference that the Glacial period was due to 



increase of snoWj and was therefore a rainy period. G. A. L. 



Eeponse aux observations de M. Gruner. [Reply to M. 



Gruner.] Bull. Soc. Geol. France, 3 ser. t. iv. pp. 82, 83. 

 Maintains the exactness of his views. 



Manzoni, A. Lo " Schlier " di Ottnang nell' Alta Austria, e lo Schlier 



delle coUine di Bologna. [The " Schlier " of Upper Austria and 



that of the Bolognese Hills.] Boll. B. Com. geol. Ital. vii. pp. 122- 



133 ; 2 woodcuts. 



The Miocene grey and blue marls of Paderno and San Luca have 



been recognized as identical with the " Schlier " of Austria. The section 



along the Reno Valley, near Bologna, shows it reposing on the argille 



scagliose everywhere, so that it is there the lowest of the Mio-pliocene 



deposits ; above it come sands and gravels of the L. Pliocene, near 



Sasso, or Miocene molasse in the hills of Yergato, &c. ; in both cases 



there is a passage. Fossils show that the Schlier was deposited in a 



deep sea ; a part of the sea-floor being then gradually raised, the deposits 



forming in shallower water around the coast became the U. Miocene 



molasse, while at a subsequent stage a continuation of this rise in 



Pliocene times gave rise to the passage into the L. Pliocene beds. 



E. B. T. 



. Delia posizione stratigrafica del calcare a Lucina joomum, 



Mayer. [Stratigraphieal Position of the L. pomum Limestone.] 

 Boll. R. Com. geol. Ital. vii. pp. 209-216, woodcut. 

 Determines the horizon of this fossil. It occurs in a thin limestone 

 at the base of the gypsum, which is below the Pliocene sands and marls ; 

 its position is the same at Brisighella, near Paenza, and near Bologna. 

 The section given shows the gypsum to lie above the " Schlier," but 

 separated by the Lucina-bed, as well as by yellow marls. E. B. T. 



Martin, Jules. [On the Yirgulian and Portlandian Beds of Elacey, 

 Cote-d'Or.] Mem. Ac. Sci. Dijon, ser. 3, t. iv. Abstract in Bev. 

 Geol. for 1875-76 ; Ann. Mines, ser. 7, t. x. pp. 557, 558. 



Massart, A. Descripcion de los Criaderos metaliferos del distrito de 



