98 GEOLOGY. 



districts of the E. Alps.] Jahrb. k.-k. geol. Reichs. Bd. xxiv. 



Heft 2, pp. 135-274, geological map and 2 plates of sections. 

 In the author's words, this paper is an attempt at a critical exposition 

 of the state of our knowledge of the constitution of the pre-Triassic rocks 

 in the Austrian Alps. The pre-Triassic rocks are divided into five 

 groups : the first three are inner Alpine ; the last two occur mostly on 

 the borders : they are termed : — 1. Quartz phyllites, or mica-schists 

 with quartz, a little limestone, &c. ; 2. Calcareous shales [KalJcjr)hyllit' 

 griippe], hornblende, and mica-schists with talcose limestones ; 3. Cal- 

 careo-argillaceous phyllites [^Kalkthonphyllitgruppe], dolomites, lami- 

 nated limestones and shales, chlorite-slate, &c. ; 4. Older greywacke, 

 i. e. L. and U. Silurian, Devonian ; 5. Carboniferous and Permian. 

 All these are separately laid down on the map. In the second part of 

 the paper the Southern Alps are especially treated of, and a review is 

 given of all that has been written about the district. The fresh obser- 

 vations throw further light on the complex structure of these Alps. 

 FusuUnce were found abundantly in both Permian and Carboniferous ; 

 many new species are cited (to be shortly described) : there is said to 

 be an insensible gradation between these two formations ; both Lower 

 Carboniferous (Culm) beds and Upper are recognized with coal-plants. 

 Upper Silurian is noted ; but it is not attempted to refer lower beds, 

 which have yielded no fossils, to Cambrian or Taconic systems as some 

 others have done. E. B. T. 



Stache, Dr. GuiDO. Die palaeozoi'schen Gebiete der Ostalpen (zweite 

 Eolge). Siidalpine Gebiete : westliche oder cadorische Elanke. 

 [Palaeozoic districts of the E. Alps. Southern districts, western or 

 Cadoric flank.] Jahrb. k.-k. geol. Reichs. Bd. xxiv. Heft 4, 

 pp. 334-423. 



This is the second part of a treatise entitled " An attempt at a Cri- 

 tical Exposition of the state of our knowledge of the Structure of pre- 

 Triassic Rock-masses in the Austrian Alpine districts." The ground 

 covered by the present essay includes the Brixen, the Cima-d'Asta, Ada- 

 mello, and YalteHna districts. The relations of the southern zone are 

 much less plain than the northern flank : no Silurian fossils have been 

 found to fix the age of any greywacke ; so that the grouping of mica- 

 ceous, quartzose, argillaceous, and calcareous schists must be based on 

 lithological characters. The author has before divided the crystalline 

 schists into four groups, of which the oldest is gneissic schists (Gneiss- 

 phyllitgruppe) : this is not found with any certainty in its usual deve- 

 lopment ; but the Cima-d'Asta granite is supposed to be of this age, for 

 it is older than the argillo-micaceous schists which dip towards it. 

 Group 2. Quartz-schist (Quartzphyllitgruppe) of typical character oc- 

 curs, but the limestones cannot be separated from those of the next 

 group (Kalkthonphyllitgruppe). Some of the limestones have the ap- 

 pearance of Silurian ; but no traces of fossils are usually seen. Near 

 Recoaro are crinoidal fragments, which give an Upper Silurian appear- 

 ance. Though no Carboniferous fossils have been found, certain con- 



