MINERALOGY. 469 



Ealstonite. Greeuland, analysis and discussion of composition, S. L. Penfield and 



D. N. Harper, Am. J. Sc, xxxii, 380. 

 EiiODOXiTE. Pajsberg and Laugban, Sweden, crystallograpbic monograpb, G. Fliuk, 



Zs. Kr., XI, 506. 

 RiCHELLiTE. Produced artificially, Cesaro, Ann. Soc. Geol. Belg., Mdm., xiii, 21. 

 RiTTiNGERiTE. Chemical examination, Streng, Jb. Min., i, 57. 

 RuTiLE. Crystallograiihic observations, Doelter, Jb. Min., i, 147. 



Alexander Couuty, North Carolina, crystals described, vom Rath, Ber. nied. Ges. 



Bonu, February 8. 

 Secondary twinning, Miigg®) Jb. Min., i, 147. 



Crystallograpbic description of a mineral from North Carolina, having appar- 

 ently the same composition and related, though distinct in form, Des Cloizeaux, 



Bull. Soc. Min., ix, 184. 

 Samauskite. Spectroscopic examination of rare elements, Crookes, Proc. Roy. Soc, 



XL, 236 ; XLi, 502. 

 SCAPOLITE. Discussion of the chemical relations of the group, Tschermak, Min. petr. 



Mitth., VII, 400. 

 SciiEELiTE. Tyrol, crystals described, v. Zepharovich, Lotos, 1885. 



Saint-Lary, Pyrenees, occurrence, Januettaz and Goguel, Bull. Soc. Min., ix, 39. 

 ScHEFFERiTE. Laugbau and Pajsberg, Sweden, crystallograpbic and chemical de- 

 scription, G. Flink, Zs. Kr., xi, 487. 

 SCHORLOMITE. Magnet Cove, relation to garnet discussed, Ka3nig, Proc. Acad. Nat. 



Sc. Philad., 355. 

 SCHUNGITE. A form of amorphous carbon, Inostranzeff, Jb. Min., i, 92. 

 Sc'OLEZiTE. Optical examination, Schmidt, Zs. Kr., xi, 587; Wyrouboff, Bull. Soc. 



Min., IX, 266. 

 Semseyite, Felsob^nya, analysis, Sipocz, Zs. Kr., xi, 216. 

 Serpentine, Franklin, New Jersey, containing manganese and zinc, Kceiug, Proc. 



Acad. Nat, Sc. Philad., 350. 

 Chemical examination, Wartha, Zs. Kr., xi, 266. 

 Smaltite. Microscopical structm-e investigated, Baumhaner, Zs. Kr., xii, 18. 

 Smithsonite, Siberia, a supposed orthorhombic variety, Grifliths and Dreyfus, Chem, 



News, Liv, 67. 

 SoDALiTE, Litchfield, Maine, analysis, F. W, Clarke, Am. J. Sc, xxxi, 264. 

 Sphalerite. Spain, index of refraction measured, Ramsay, Zs. Kr., xii, 218. 



Hungary, analyses, Sipocz, Zs. Kr., xi, 216, 217, 

 Spinel. New related mineral in iihouolite of Olbriick, K. de Kroustchoflf, Bull. Soc. 



Min., IX, 85, 

 Spodumene, Alexander County, North Carolina, var. hiddeiiite, occurrence described, 



W, E, Hidden, Am, J. Sc, xxxii, 204, 483. Crystals with new planes measured, 



vom Rath, Ber. nied. Ges. Bonu, February 8. 

 Stepiianite. Exhaustive crystallograiihic monograph, with many figures, Vrba, Ber, 



bohm. Ges., 119, 

 SriBNiTE, Japan, crystals showing curvature, L. Bombicci,Acc Sc, Bologna, Janu- 

 ary 24, 

 Stilbite. Crystallograpbic and chemical relations discussed, Langemann, Jb. Min., 



II, 126, 

 Stromeyerite, Mexico, analysis, Kcenig, Proc. Acad. Nat. Sc. Philad., 281. 

 Stuvenite. Chili, new variety of alum, Darapsky, Verb, wiss, Ver. Santiago, 3, 105. 

 Sulphur, Rabbit Hollow, Nevada, crystals described, E. S. Dana, Am. J. Sc, xxxii, 



389, 

 Dispersive power determined, Schrauf, Wied, Ann., xxvii, 300. 

 SVANBERGiTE, HoiTsjoberg, Sweden, occurrence, Igelstrom, Geol. For, Forh., Viii, 



176. 

 Sylvanite. Offenbiinya, analysis, Sipocz, Zs. Kr., xi, 210. 

 Sylvite. Molecular structure investigated, Brauns, Jb, Min., i, 224, 



