MIXERALOGT. 239 



layers, which replace octahedral crystals of cuprite. Copper-pyrites is 

 therefore not the oldest mineral in these deposits. A portion of the 

 copper-pyrites has been replaced by iron-pyrites. F. W. K. 



Doelter, Dr. C. Beitriige zur Mineralogie des Fassa- und Fleimser- 



thales. [Mineralogy of the Fassathal and Fleimserthal.] Miu. 



Mitt. Heft iii. pp. 175-182. 



Describes the epidote of the Allochetthal ; chabasite,- epidote, and 



iron-glance of the Mai Inverno ; fassaite from the llicoletta; vorhau- 



serite from the Pesmeda chain ; dolomite from the llodellaberg ; fluorite 



from the Cima d'Asta ; hornblende crystals in melaphyr near lloda ; and 



felspar from the Yal di Madonna. Gives a list of minerals occurring at 



Monzoni. F. W. R. 



. Bemerkungen zu dem Artikel des Herrn G. v. Rath in Yerh. 



No. 14. Verh. k.-l\ geol. EeicJis. pp. 289, 290. 

 In reply to Vera Rath's criticisms in a former number. 



. Ueber einige neue Mineralfunde aus Siid-Ost-Tirol. Verh. 



Tc.-l\ geol. Beichs. pp. 295, 296. 



On Yorhauserite — probably a pseudomorph after augite. The 

 fassaite of the N. side of Mt. Monzoni contains calcite, and is probably 

 a secondary product. Fluor spar noted from the Cima d'Asta. E. B. T. 



. Thompsonit (Componit) von Monzoni. Verh. Tc.-Tc. geol. 



EeicJis. pp. 304, 305. 

 Note to prove that this mineral occurs in Mt. Monzoni (Tyrol). 



Domeyko, — . Sur les mineraux tellures recemment decouverts au 



Chili. [Telluric Minerals recently found in Chile.] Compt. Rend. 



t. Ixxx. pp. 632-634. 



The minerals described arehessite (with two analyses) and tellurate of 



lead ; both come from the Condoriaco mine, province of Coquimbo, about 



15 kilometres east of Arqueros silver-mines. This is the only locality 



in Chile for these minerals. G. A. L. 



Drasche, Dr. R. von. Ueber ein neues Braunstein-Yorkommen in 

 Untersteiermark. [New Occurrence of Manganese-oxide in Lower 

 Styria.] Verh. Tc.-k. geol. lleichs. p. 52. 



Six inches thick, in Gailthal schists, found in well-boring. 



Dumas, M. E. Note sur la Nature de la Pierre de Touche. [Nature 



of Touchstone.] Ann. Chim. Phys. ser. 5, t. vi. pp. 263-275. 

 Contains, references to the Touchstone from ancient writers, and 

 results of chemical and microscopical examination of a fragment of 

 touchstone of excellent quality which had been long in actual use. 

 This is found to be a fossil wood, retaining some of its original carbon, 

 though most of the organic structure has been replaced by silica. 



F. W. R. 

 Egleston, Prof. T. Notes on the Treatment of Mercury in North 



California. Trans. Amer. Inst. Min. Eng. vol. iii. pp. 273-307. 

 Describes the ores of mercury of N. California. They are metallic 



