MINERALOGY. 239 



Sitzungsb. math.-phys. Classe k. b. Ak. Wiss. Heft iii. pp. 165- 



176. 

 Analyses of Chrysotile from Zermatt, Antigorite from Zermatt, 

 Vorhauserite from Monzoniberg, and a mineral from Kraubat in Styria. 

 These belong to two allied species — Serpentine, with Antigorite and 

 Chr^-sotile, and Marmolitef including Yorhauseritc and the Kraubat 

 mineral. The relations between the terpentine and Marmolitc arc ex- 

 hibited in graphic formulae. P. "W. R. 



KoBELL, Pk. vo2f. Lcs Miucraux: Guide Pratique pour leur Deter- 

 mination &c. Paris. 



A translation of the 10th German edition of Yon KobcU's work, by 

 Count de la Tour du Pin, intended for the use of chemists, manu- 

 facturers, &c., to assist in speedily recognizing and analyzing the prin- 

 cipal minerals. C. E. De R. 



KoENEi^-, A. VON. Ueber einige ncue Mineral-Yorkommnisse. Sit- 

 zungsb. Gesell. Befdrd. ges. Naturwiss. Marburg, no. 5. [Noticed 

 in N. Jahrb. 1875, p. 87.] 

 Describes occurrence of natrolite, phillipsite, and analcime in de- 

 composing basalt at Stempel, near Marburg. Notes occurrence of 

 brown spar at Bleialf Mine, near Call, in the Eifel. Gives analyses of 

 the natrolite and of the brown spar. P. W. B. 



KoKscnAEow, N. von. Resultate der an Aragonit-, Kupferkies- und 



Skorodit-Krystallen angestellten Messungen. Mel. Phys. Chim. 



t. ix. pp. 110-130, woodcut. (BuU. t. xix. pp. 558-572.) 



Measurements of 7 crystals of aragonite from Bilin, in Bohemia ; of 



copper-pyrites from the Yictoria mine, near Miisen ; and of scorodite 



from the Urals. P. W. R. 



KoKscHAKow, M. N. DE. SuT Ics Yalcurs exactes des Angles et sur 

 la Tetartoedi'ie des Cristanx de Per titahe. [On the exact values 

 of the angles, and on the tetartohedrism of crystals of titaniferoua 

 iron.] Ann. Chim. Phys. ser. 5, t. iii. pp. 471-476, 2 woodcuts; 

 also Compt. Rend. t. Ixxix. pp. 734-738. 



KoNio, G. A. Remarks on Silver Ore from Colorado. Proc. Ac. 

 Nat. Sci. Philadel. p. 278. 



The ore is composed of galena and antimoniferous ruby silver, and 

 produces a crimson- and flesh-coloured incrustation when heated on 

 charcoal at the point of the inner blowpipe-flame. A. H. G. 



KoNiNCK, — DE (fils). [On specimens of Quartz and Barytine.] 



Ann. Soc. Ge'ol. Belg. t. i. BuU. pp. Iviii, lix. 

 Quartz from a chlophyre-pockct at Quenast ; Barytino from Qucnast. 



Krejci, J. Das isoklino Krystallsystem. Pp. 52, with plato 

 (crystals). 4to. Prague. Published in Abh. k. bdh. Gesell. 

 Wiss. for 1874. 

 A purely crystallographic paper on the isoclinic (rhombohcdral) 

 system. 



