104 GEOLOGY. 



made at several points of the cliain ; and the author holds that they 

 more frequently dip away from the axis. Moreover the occurrence of 

 a conglomerate with rolled pebbles of crystalline rocks shows that these 

 were elevated before the formation of the Secondary beds. The idea of 

 a general fan-structure is rejected ; the crystalline schists are supposed 

 to have been vertical before the Trias and Jurassic beds were laid 

 horizontally upon them, the normal position being seen in the peak of 

 the Aiguilles llouges. To account for the cases of apparent inclination 

 of Secondary beds under the crystalline rocks and towards the interior 

 of the range, it is supposed that these are local occurrences produced by 

 sinking of original horizontal beds consequent on removal by solution 

 of underlying gypsum and calcareous beds ; the edges would be up- 

 turned and the crystalline schists might seem to overhang. E. B. T. 



Pichler, A. Beitrage zur Geognosie und Mineralogie Tirols. [Geo- 

 logy of Tyrol.] JSf. Jahrh. Heft ix. pp. 919-923. 

 Local stratigraphical and petrographical details of the Achenthal and 

 the Pens " massif." 



Piette, Ed. La hauteur du glacier quaternaire de la Pique, a 

 Bagneres-de-Luchon. [Height of the La Pique Quaternary Gla- 

 cier at Bagneres-de-Luchon,] Compt. Rend. t. Ixxxiii. p. 1187. 



Pilar, Dr. Gr. Spuren der Eiszeit im Agramer Gebirge. [Traces of 

 the Ice-nge in the Agram mountains.] Verh. Jc.-Jc. geol. lieichs. 

 pp. 233-235. 



!Notes the direct and the indirect evidences of glaciation met with in 

 these hills, which are little more than 3000 feet above the sea-level. 



Pillet, L. Note sur la constitution ge'ologique de la colline de 

 Lemenc. [Geology of the Lemenc Hill (Savoy).] Bull. Soc. Geol. 

 France, 3 ser. t. iii. pp. 687-690. 

 Lists of fossils from the Ammonites tenuilohafus zone and 2 higher 

 horizons of the U. Jurassic. 



Platz, Prof. — . Ueber die Bildung des Schwarzwaldes und des 

 Yogesen. [The Black Forest and the Vosges.] Zeitsch. deutsch. 

 geol. Ges. Bd. xxviii. Heft 1, pp. 111-132, tab. 3. 

 Controverts the vieAvs of Lepsius that the Trias and Jurassic have ex- 

 tended over the Yosges, &c. area, and argues that the older view is 

 correct, that the Black Eorest and Yosges were never covered by such 

 beds, and that they existed as continental land before the deposition of 

 the Muschelkalk. The origin of the Ehine valley dates accordingly 

 from before the deposition of the Muschelkalk. E. B. T. 



. Ueber die Bildungsgeschichte der oberrheinischen Gebirge. 



[Formation of the Hills of the Upper Ehine.] N. Jahrh. Heft vii. 

 p. 754. (See above.) 



Ponzi, Prof. G. In riposta alle considerazioni critiche fatte dal 



