6o3 General Notes. [July, 



This society, founded in January, 1877, and consisting of be- 

 tween fifty and sixty members, is the only society in the country 

 especially devoted to mineralogy which publishes Proceedings. 

 A large proportion of the communications are brief and of local 

 interest. It is greatly to be desired that a society of larger scope— a 

 Mineral apical S nicty of America — may be organized ere long. 

 With the leading mineralogists of this country as active mem- 

 bers, such a society should be at least as successful as the miner- 

 alogical societies of Great Britain and of France. The Nat- 

 uralist will give such a society all possible assistance. 



The volume before us consists of thirty-seven communications 

 upon mineralogy and geology, contributed during 1880 and 1881. 

 The mineralogical articles are here briefly reviewed under the 

 titles as given. 



Some neiu Pennsyivanii mineral localities.— -Chas. M. Wheatley 

 reports new localities for aurichalcite, melaconite, byssolite and 

 azurite in Berks and Montgomery counties. 



Pscudomorphs of Serpentine after Dolomite. — IT. Carvill Lews 

 describes at length some serpentine pseudomorphs from the Wis- 

 sahickon creek, which have the cleavage planes and external 

 characters of dolomite, resembling those described by Professor 

 Dana from the Tilly-Foster iron mine. Their mode of origin is 



New localities for Barite.—ll. C. Lewis gives three new Penn- 

 sylvania localities for barite. 



New localities for Chabazite.—'L. Palmer announces two new 

 localities for chabazite in Delaware county, Penna. 



On a new ore of Antimony.— \ I. Carvilf Lewis describes a new 

 ore of antimony from Sonora, Mexico. It has the following 

 characters: Isometric. Habit octahedral. Generally massive. 

 Hardness 6.5-7. Spec. grav. 4.9. Luster of the crystals, glassy; 

 of the massive mineral, sub-resinous or sub-vitreous. Color, pale 

 grayish-yellow. Streak uncolored. Transparent in crystals, 

 opaque when massive. Fracture sub-conchoidal. Before tne 

 blowpipe fuses with difficulty to a gray slag, decrepitates strongly 

 and gives a white coating. In the closed tube decrepitates strongly. 

 turn> yellow when hot, gives off water but does not fuse, it 

 contains 3.1 per cent, of'water, and consists mainly of ant.mo- 

 nious oxide. (This, >mnmni< C ,n was mad fob 2 3 , l**>- SlX 

 months before Professor Cox's paper before the A. A. A. S. upon 

 this same mineral. Professor Cox supposes it to be stibicon.te, 

 but it is more nearlv allied to senarmontite. . 



Menaccanite from Pairmonnt /W— John Ford exhibits a large 

 curved crystal of tins mineral from Fairmount nark. Plnla. 



Note on Dv write f n II ', ,v % Penna V A. Genth 

 describes a shaly, talcose mineral from Rockland Forges, I a.» 

 alkali determination of which gave Ivan: ILO, 5.6c ; K a O, IO-3- ' 

 Na 2 0, 0.36. 



