MINERALOGY. 253 



Nordenskidld, A. E. Om forekomsten af Leucopp-it vid Brevig. 

 [Occurrence of Leiicopyrite at Brevig, Norway.] Geol. Foren. 

 Stockholm Forhandl. Bd. ii. pp. 241, 242. 



Pearce, Richard. Note on Chrome Iron in the Serpentine of the 

 Lizard. Trans. R. Geol. Soc. Cornwall, vol. ix. part 1, pp. 99, 100. 



Some black granulir particles in serpentine from a quarry near 

 Cadgwith consist of chromic iron. The stone contains 1*8 p. c. of the 

 mineral. C. L. N. F. 



. Memorandum on Pitchblende in Colorado. Trans. R. Geol. 



Soc. Cornwall, vol. ix. part 1, p. 102. 



The pitchblende occurs with auriferous copper and iron-pyrites at 

 the junction of gneiss and mica-schist in llussel district, Gilpin County, 

 Colorado. C. L. N. P. 



. Note on Pitchblende in Cornwall. Trans. R. Geol. Soc. 



Cormuall, vol. ix. part 1, pp. 103, 104. 



Pitchblende has been found at St. AusteU Consols, Dolcoath and 

 South Tresavean mines, where little veins cross the lode. It occurs also 

 at \Mieal Owles, but not under similar conditions. C. L. N. F. 



Pichler, Adolf. [Zirlite, &c.] iV^. Jahrb. Heft i. p. 51. 



Records the occurrence of Zirlite in the upper Cardita-heda near 

 Nassereit. It is an amorphous aluminium-hydrate, occurring as an 

 incrustation on a sandy marl. F. W. R. 



Plattner. Manual of Qualitative and Quantitative Analysis with 

 the Blowpipe, from the last German Edition. Revised and en- 

 larged by Prof. Th. Richter. Edited by T. H. Cookesley. Pp. xviii, 

 515 ; 78 woodcuts. 8vo. London. 



Posepny, F. Ueber das Yorkommen von gediegenem Gold in den 

 Mineralsehalen von Yerespatak. [Occurrence of Native Gold in 

 the mineral layers of Yerespatak.] Verh. h.-k. geol. Reichs. pp. 

 97-101. 

 The veinstones of which the layers are composed are arranged in 

 three groups of silica, carbonates, sulphides ; native gold of the com- 

 position about 70 p. c, with 30 p. c. of silver, occurs in each, but chiefly 

 in the quartz. Concentric layers have been formed round gold in some 

 cases, the gold nucleus being of granular structure ; it is contended 

 that the gold here was as old as the other minerals, and therefore not 

 formed by their decomposition. E. B. T. 



Pumpelly, Prof. Raphael. On Pseudomorphs of Chlorite after Garnet 

 at the Spurr Mountain Iron Mine, Lake Superior. Amer. Journ. 

 ser. 3, vol. ix. pp. 17-21, pi. ii. 

 These occur abundantly in a bed of chloritic schist overlying the 

 great magnetite bed of the Spurr-Michigamme iron-range. This 

 schist is of Arcbffian age (Upper Huronian iron-series). Accord- 

 ing to the writer, the history of the chlorite, both pseudomorphs 



