246 MINEBALOGT. 



"Websky, Prof. IJeber Beryll von Eidsvold in Norwegen. [Bery 



from Eidsvold, Norway.] Min. Mitth. Heft ii. pp. 117, 118. 

 A crystallographic description. 



Weisbach, A. [Growth of Calcite and Quartz.] N. Jalirh. Heft ii. 



pp. 171-174. 

 Claims priority for Breithaupt's observations on tbe regular growth 

 of crystals of calcite and quartz in Saxony. 



[Growth of Calcite and Quartz.] N. Jalirh. Heft vii. pp. 



730-733. 



Controversial letter supporting Breithaupt's claim to priority in 

 enunciating the law of the regular growth of calcite and quartz. 



Widman, 0. Ett bidrag till Kiinnedomen om Kondroditens sam- 



mansiittning. [Contribution to the Knowledge of the Composition 



of Chondrodite.] Geol. Fdren. StocJcJwhn Fork. Bd. iii. pp. 113- 



115. 



Analysis given. Suggests that the formula ought to be written thus : — 



11 (5MgO . 2SiO0 + oMg EP 2Si El^ 



Wiik, F. J. Analyser af finska mineralier utfonda pa universitetets 



kemiska laboratorium under ledning af ' Prof. J. J. Chydenius. 



[Analyses of Einland Minerals.] Ofv. Finsha Vet.-Soc. Fork. Bd. 



xvii. pp. 69-76. 



Chemical analyses given of the following minerals — white felspar 



(orthoclase), scapolite, spodumene, malacholite, green malacholite (two 



localities), green pyroxene, black pyroxene, hypersthene, hornblende- 



anthophyllite, a steatitic mineral and dolomite. E. E. 



Williams, Edward H, On crystals of Tourmaline with enveloped 

 Orthoclase. Amer. Journ. ser. 3, vol. xi. pp. 273-275, figs, in text. 

 The specimens described come from a quarry 5 miles W. of Port 

 Henry, N.Y., and seem to point to simultaneous crystallization. 



Zangerle, M. Lehrbuch der Mineralogie. 8vo. Brunswick. 



Z[ezi], P. Le nuove specie minerali studiate e descritte negli anni 

 1873-75. [New species of Minerals studied and described in 

 1873-75.] Boll. E. Com. rjeol. Ital. vol. vii. pp. 54-76, 155-164, 

 238-248. 



A continuation of descriptions of now species of minerals, collected 

 and translated from various foreign journals in those years. 



See also : — 

 Graham, Walter. Ores of Tin and Zinc : p. 200. 

 Phillips, J. A. Copper-ores : p. 200. 

 Smyth, W. W. Metallic Minerals : p. 199. 



