MINERALOGY. 225 



breccia of hornstone, quartz, and clay, in which occur galena, corussite, 

 and pyromorphite. The occurrence of galena, with trivial exceptions, 

 h;id previously been recorded only from limestone or from the neigh- 

 bourhood of limestone. F. W. K. 



Brogger, W. C. IJher neue Vorkommnisse von Vesuvian und 

 Chiastolith in Norwegen. [Vesuvian and Chiastolite in Norway.] 

 Zeitsch. deutsch. geol. Ges. Bd. xxviii. Heft i. pp. 69-74 ; 2 wood- 

 cuts. 

 1. Notices vesuvian crystallized out in fossiliferous limestone, occupying 

 cavities left by the solvent action of water on corals ( Cyathophyllum 

 and Halt/sites) contained in the rock. Contact with granite seems to 

 be the cause of this appearance. Locality, between Drammen and 

 Konerud. 2. Notices the occurrence near L. Ekern of chiastolite in 

 Graptolite-slates, the Graptolites not being obliterated by the action 

 which has produced the crj'stals in their midst. E. B. T. 



Brogger, W. C, and G. vom Rath. Uber grosse Enstatit-Krystalle 

 von Kjorrestad im Kirchspiel Bamle, siidliches Norwegen, auf- 

 gefunden von W. C. Brogger und H. H. Reusch. [Large Enstatite 

 Crystals, S. Norway.] Monatsh. Tc. preuss. Ah. Wiss. pp. 549- 

 564, pis. i., ii. ; Phil. Mag. ser. 5, vol. ii. pp. 379-387. 



Gives analyses and crystallographic description. 



Brush, Prof. G. J. Contributions from the Sheffield Laboratory of 

 Yale College. No. xxxix. — On the Chemical Composition of 

 Durangite. Amer. Jouni. ser. 3, vol. xi. pp. 464, 465. 



Gives analysis. The formula arrived at is : — 



(Na, Lif (Al, ¥e, Mn) As'^O, Fy. 



Burghardt, [Dr.] C. A. On the formation of Azurite from Mala- 

 chite. Proc. Lit. Phil. Soc. Manch. vol. xv. pp. 72, 73. 

 Notes the change of condition of a specimen of malachite from 

 Alderley Edge, by exposure to the atmosphere for a few months. 



Chapman, E. J. On some Blowpipe Reactions. Phil. Mag. ser. 5, 

 vol. ii. pp. 459-466. 



Church, [Prof.] A. H. Dysodile. CJiem. News, vol. xxxiv. no. 881, 

 p. 155. 



The analysis of the combustible portion of a specimen of dysodile 

 from Rotl, near Bonn. Dysodile docs not belong to the same group of 

 minerals as tasmanite. F. W. 11. 



Cloud, T. C. Note on Atacamite. Chem. News, vol. xxxiv. no. 890, 

 p. 254. 



Describes the occurrence of the mineral at Wallaroo, S. Australia, 

 giving an analysis of a sample, and explaining its behaviour under the 

 influence of heat and air. F. W. R. 



1876. a 



I 



