470 Eeviews — Geimtz's Neues Jahrbuch, 



H. Scliroeder's research.es on the atomic -constitution of some minerals : 1. Lime- 

 garnet and magnesia-garnet ; 2. Spinelle and gaknite ; A. Streng on some minerals 

 in the cavities of vesicular hasalts (pi. ix.) : 1. Phillipsite; 2. Apophyllite; 

 3. Mesolite ; 4. Faujasite, and pseudomorphs of palagonite after faujasite; 

 5. Gismondine ; Burkart on some new Mexican localities for minerals ; A. Frenzel's 

 mineralogical notes; H, Mehl's mineralogical notes (pi. x.); G. vom Eath's Obituary 

 notice of Dr. Friedrich Hessenberg, with extracts from his mineralogical notes 

 (woodcuts) ; H. Mohl's comparison, microscopical examination, and description of 

 a collection of t53)ical basalts (pi. xi.) ; Ant. del Castillo and Burkart on a new 

 bismuth mineral; and A. von Lasaulx on the so-called "hemitbrene" and some 

 other rocks from the gneissic plateau of the Dep. Puy de Dome. 



Jalirgang 1875, Hefte 1-9. The original memoirs in this volume 



are — 



For Palseontology : — Eugene Geinitz on a new exposure of bituminous shale in 

 the Lower Dyas (Permian) of Weissig near Pillnitz, Saxony; among the fossils 

 figured in pi. i. is a new Insect [Blattina porrecta) and a new Fern {^Sphenopteris 

 Weissigensts) ; F. Toula on some Permio-carboniferous fossils from the West Coast 

 of Spitzbergen (woodcuts and pis. v.-x.) ; F. Mauxer on the fossils of the Devonian 

 red- ironstone of the Haina Mine, Eodheim (pi. xiv., Strophomena irregularis, F. 

 Pwoemer, b.u^ Ample xus biseptatus, F. Maurer) ; H. B. Geinitz on Knorria Benedeniana 

 from the Belgian Coal-formation (pi. xv. ). 



For Geology : — A. Baltzer on a late landslip on tbe Eossberg, and on similar 

 occurrences in the Alps (woodcuts) ; Silvestri on the eruption of Etna on Aug. 29, 

 1874 ; Th. Wolf, Geological notes on Ecuador : 4. the volcanic eruptions and earth- 

 quakes in Ecuador since the Conquest ; A. Picbler on the Trias of the nortbern 

 limestone Alps of the Tirol; C. W. C. Fuchs on the geology of Meran and the 

 neighbouring districts in the German Alps (pi. xvi. Geological map) ; F. "W. JSToak 

 on the formation of continents (woodcuts) ; A. Pichler on the geology of the Tirol : 

 1. Porphyrites; 2. Granite of theBrixen; 3. PorphjTy of Botzen; 4. Porphyritic 

 scbist ; 5. Micaceous clayslate ; 6. Dolomite of the Cislon; 7. Cardita-beds ; 8. The 

 Sonnenwendjoch ; 9. Laumontite, &c. ; Mohr on the cause of the Earth's internal 

 beat. 



For Mineralogy and Petrology : — A. Kenngott on the crystalline forms of quartz, 

 and the trapezoedral tetartoedry of the hexagonal system (woodcuts) ; E. Cohen 

 on some peculiar melaphyre-amygdaloids from South Africa, with sub-cylindrical 

 or pipe-like kernels (pi. ii. and iii.) ; A. von. Lasaulx's mineralogico-crystallographic 

 notes (pi. iv.) ; Ferd. Eoemer on the Gonderbach Mine, near Laasphe, in the Witt- 

 genstein Circle ; F. Sandberger on clarite from the Clara Mine, near Shapbaeh, in the 

 Baden Schwarzwald ; H. Schroder on the atomic-constitution of sume minerals ; 

 E. Kalkowsky's microscopical examination of the so-called micaceous trap of Metz- 

 dorf , proving that this is an altered grauwacke, and is not at all an eruptive rock ; 

 C. Klein's mineralogical notes: 13. Anatase ; 14. Xenotine from the Binnenthal ; 

 A. Streng on the crystalline form and macles of Phillipsite (pi. xiii.) ; A. Frenzel's 

 mineralogical notes ; Mohl's microscopical mineralogical notes ; A. Streng on the 

 porph}Tites of Ilfeld and vicinity. 



The proceedings of the Upper-Ehine Geological Society are 

 also published in this volume of the Neues JahrbucJi; and among 

 the more important of the miscellaneous letters to th-e Editors we 

 may note : — 



P. Strobel on the remains of Balsenopteridse in the Paima Museum; F.J.Kaufman 

 on the Triassic and Jurassic fossils of the Mythenstocke, near Schwyz, the Buoch- 

 serhom, and Stanserhorn, in Unterwalden ; P. Strobel on the geology of the Andes 

 between 33° and 35'' S. Lat. ; Eenard on the plutonic rocks of Belgium and the 

 Ardennes; A. Arzruni on the sulphur beds in Daghestan; H. Eosenbusch on the 

 contact of granite and clayslate in the Vosges; G. vom Eath on the volcanic 

 eruptions in Iceland in the winter of 1874-5 ; F. Zirkel's microscopic examination of 

 volcanic ash which fell in Norway, March 29, 1875 ; A. Schrauf on wapplerite ; 

 Des Cloizeaux on perowskite, felspars, leucite, salite, eucrite, &c. ; and H. Mohl on 

 melaphyre, minette, and porphyrite. 



