MINERALOGY. 241 



ScaccM, Prof. Microsommite del Monte Somma. 4to. Nciples, 

 N. Jahrh, Heft vi. pp. 637-640 ; 3 woodcuts. 



Crystallographic note on the regular growth of iron-glance and mag- 

 netite from Vesuvius. 



Scharflf, Dr. Friedrich. Ueber die Selbsthatigkeit in ihrer Aus- 

 bildung gestorter, sowie im Berge zerbrochener und wieder er- 

 ganzter Krystalle. N. Jahrh. Heft i. pp. 24-32. 



An attempt to show that crystals possess a kind of life. 



. Ueber den inneren Zusammenhang dor verschiedenen Krys- 



tallgestalten des Kalkspaths. [Interior Crystalline Structure of 

 Calcite.] Pp. 61 ; 5 pis. 4to. Frankfort. 



Shepard, Prof. Charles Upham. On Hermannolite, a new species of 

 the Colurabium Group. Amer. Journ. ser. 3, vol. xi. pp. 140, 141. 

 Gives an analysis of this new mineral by Dr. R. Hermann. The 

 formula is given thus : — 



2(2K0, SXbOO + CRO, Me20^)IPO'=(iTa20'-|-|IPO^). 



G. A. L. 



. On New Minerals. Phil. Mag. ser. 5, vol. ii. pp. 319, 320. 



Describes the following : — Vanuxemite (massive), a hydrous silicate 

 of alumina and zinc ; Keatiiigitie (probable new species resembling 

 Fowlerite) ; calcozincite (massive), ZnO, with CaO, CO2, H/) ; euchlorite 

 (massive), a hydrous silicate of magnesia, iron protoxide, and alumina ; 

 Pelhamine, a mineral resembling serpentine, of the following composition 

 — SiO, 38-40, AI2O3 2-80, FeO 15-52, MgO 39-88, H,0 3-40. T. G. B. 



Silvestri, Prof. 0. La scombinazione chimica (dissociazione) appli- 

 cata alia interpetrazione di alcuni fenomeni vulcanici ; sintesi e 

 analisi di un nuovo minerale trovato suU' Etna e di origine comune 

 nei vulcani. [Dissociation as explanatory of some Volcanic Phe- 

 nomena ; a new mineral from Etna, common in volcanoes.] Atti 

 Ac. Grioen. Sci. Nat. ser. 3, t. x. pp. 17-27. 

 Describes certain experiments, and gives analyses of iron nitride 

 (not new) of formula FogN^. 



Sopra alcune Paraffine cd altri Carburi d'Idrogeno omologhi 



che trovansi conteuuti in una Lava della Etna. [Paraffin and 

 other Hydrocarbons in a Lava from Etna.] 4to. Catania. 



Sjogren, A. Mineralogiska notiser. III. Manganosit och pyro- 

 chroit funna i Mossgrufvan §, Nordmarksfaltet i Vermland. [Mine- 

 ralogical notes. III. Manganosite and Pyrochroite found at the 

 Moss-mine in the Mining-district of Nordmark, Vermland, Sweden.] 

 Geol. Foren. Stockholm Forh. Bd. iii. pp. 181-183. 



Describes the mode of occurrence. 

 1870. K 



