82 GEOLOGY. 



Fossils in the Mountains between the Gader and Ampezzo 

 Yalleys.] Verh. l.-l: geol. Beichs. pp. 137-140. 

 The fauna announced as having beeu found near Lavarella is chiefly 



that of the Coral Rag, but with an admixture of Brown Jura (Inf. 



OoHte, &c.) forms. G. A. L. 



Klunge, A., and M. de Tribolet. Etudes geologiques et chimiques sur 

 quelques gisements de calcaires hydrauliques de I'Oxfordien et de 

 I'Astartien du Jura neuchatelois et vaudois. [Hydraulic Lime- 

 stones, &c.] Bull. See. Vaucl. Sci. Nat. ser. 2, vol. xiy. pp. 65-90. 

 These investigations of the hydraulic limestones of the Jura above 

 Neuchatel are confined to those of M. Oxfordian or L. Kimmeridgian 

 age. Analyses were made of the best known ; and they are classed, 

 according to the amount of aluminium-silicate, as cements with 20-30 

 p. c, and two degrees of less strength as hydraulic limestones. The 

 cement-beds of the Oxfordian form its middle division (M. Argovian), 

 and are about 100 feet thick. Above the Corallian comes the Astar- 

 tian, in which cement-beds again occur. Favourable analyses are 

 given from localities not yet worked ; and it is shown how this industry 

 may be increased. E. B. T. 



Knop, Dr. A. II Lago di Posta nel circondario di Sora. Boll. B. 

 Com. geol. Ital. vii. pp. 80-83. Translated from AT. Jahrb. 1875, 

 " Ueber die hydrographischen Beziehungen," &c. See Geological 

 Eecoei) for 1875, p. 76. 



Koch, Dr. A. Nene Beitrage zur Geologie der Fmsca Gora in Ost- 

 slavonien. [Geology of Fmsca Gora, E. Slavonia.] Jahrb. Ic.-lc. 

 geol. Beichs. Bd. xxvi. Heft 1, pp. 1-48. 



The Palseozoic rocks consist of schists and limestones, and are fol- 

 lowed by Cretaceous rocks without any intermediate deposits; they 

 consist of sandstones, conglomerate, mail, and siliceo-dolomitic lime- 

 stones, mostly of Gosau age : several sections are given, and fossils 

 noted. Two serpentine layers occur, said to be the product of alteration 

 of an Olivine-Enstatite rock, which must have been poured out in the 

 Cretaceous sea; gabbro also occurs. These rocks are microscopically 

 and chemically analyzed. Of Tertiary deposits Sotzka lignites, Sarma- 

 tian, &c., are described : the eruptive rock in connexion with the 

 Neogene is classed as a Doleritic Phonolite, the result of analyses being 

 given ; it contains Xepheline, Sanidine, Amphibole, &c. E. B. T. 



. Geologische Beschaffenheit der am rechten Ufer gelegenen 



Halfte der Donautrachytgruppe (Set. Andrae-Yisegrader Gebirgs- 



stock) nahe Budapest. [Trachyte Group, right bank of Danube, 



near Pesth.l Zeitsch. deutsch. geol. Ges. Bd. xxviii. Heft 2, pp. 293- 



349, tab. 8." 



Of the trachytes 7 varieties are described, chemical and microscopical 



analyses of each being given ; they are grouped as acid, normal, and 



basic Labrador-Trachj-tes ; the most abundant are the Labrador- 



