TOG SCIENTIFIC EECORD FOR 1885. 



Igelstkomite (EiscukiKibclite). From Wester Sill'berg. Sweden, juialyisi.s, Weibull, 



Miu. petr. Mittb, vii, 112. 

 loDYRiTE. Crystals from New Mexico, F. A. Gcuth and G. Tom Rath, Zs. Kr., x, 



473; Am. PMl. See, PMlad., April 17. 

 Dimorphism of silver iodide, Mallard and Chatelier, J. Phys., II, iv, 305. 

 lOLiTE. Occurrence as a constituent of rocks, Hussak, Jahrb. Miu., 1885, ii, 81. 



Jamesoxite. Formation artificially, Doelter, Zs. Kr., xi, 40. 

 JOSEITE. Brazil, analysis, Genth, Am. Phil. Soc, Philad., Oct. 2. 



KiRWANiTE. Examined microscopically, Lacroix, Bull. Soc. Min., viii, 428. 

 Knebelite. Dannemora, Sweden, analysis, etc., Weibull, Oefv. Ak. Stockh, xlii, 



No. 2, 3. See also Igelstkomite. 

 Kobellite. Analysis of variety from Colorado containing no antimony and 5 to 



6 per cent, silver, H. F. and H. A. Kellar, Journ. Am. Chem. Soc, vii, 194. 

 Lavenite. New mineral from Laugesundsfjord, Norway, Brogger, Geol. For. Forh., 



VII, 598. 

 Lead. Artificial crystallized silicate, E. S. Dana and S. L. Penfield, Am. J. Sc, 



XXX, 38. 

 Leucite. Efl'ect of heat upon position of twinning lamellae, Rosenbusch, Jahrb. 



Min., 1885, ii, 59. See also Klein, ihid., p. 234. 

 Altered to orthoclase Vesuvius, E. Scacchi, Rend. Ace. Sc. Napoli, December. 

 Pseudomorphs in the lencitophyr of IheErzgebirge, Sauer, Zs. geol. Ges., xxxvii, 



448. 

 Pseudomorphs (?) from Magnet Cove, Ark., G. F. Kuuz, Amer. Assoc. Adv. Sc. 1885. 

 LiNARiTE. Comparison of measurements by himself and by V. Jeremejew, von Koks- 



charow, Min. Russland, ix, 268. 

 L1NN.SITE. Etching figures, F. Becke, Min. petr. Mitth., vii, 225. 



Magnetite. Etching figures, F. Becke, Miu. petr. Mitth., vn, 200. 



Containing traces of vanadium, E. Claassen, Am. J. Sc, xxix, 349 ; Am. Ch. .7., 



VII, 349. 



From Sweden, containing manganese, M. Weibull, Min. petr. Mitth., vil, 109. 

 Malachite. Occurrence in Arizona, G. F. Kuuz, N. Y. Acad. Sc, Oct. 5, p. 275. 

 Marcasite. Formation artificially, Doelter, Zs. Kr., xi, 31. 

 Martite. Occurrence near Rittersgriin, Saxony, Schalch, Jahrb. Min., Beil.-Bd., 



IV, 189. 

 Mellite. Specific heat, Bartoii and Stracciati, Bull. Com. Geol. d'ltalia, vi. 

 Menaccanite. Analysis of titanic iron sand from Brazil, J. B. Mackintosh, Am. 

 J. Sc, xxix, 342. 



Carter's Mine, N. C, analysis, Keller, Am. Phil. Soc. Philad., Oct. 2. 



Lancaster County, Pa., analysis, Kuerr and Brunner, Am. Ch. J., vi, 413. 

 Mercury. Found native in Louisiana, E. Wilkinson, Am. J. Sc, xxix, 280. 

 Metacinnabarite. From California in tetrahedral crystals like sphalerite, also anal- 

 ysis, S. L. Penfield, Am. J. Sc, xxix, 452. 

 Miargyrite. Formation artificially, Doelter, Zs. Kr., XI, 39. 

 Mica. Varieties from Brancliville, Conn., analyzed. Ram melsberg, Jahrb. Min., 1885, 



II, 225. 

 Microlite. Transparent crystal from Virginia, W. E. Hidden, Am. J. Sc. xxx, 82. 



Optically isotrope, Hintze, Zs. Kr., x, 86. 

 Milarite. Optical examination, Rinne, Jahrb. Min., 1885, 11, 1. 

 Monazite. Crystals from Cornwall examined, Miers, Min. Mag., vi, 64. 



Found at Middletown, Conn., W. N. Rice, Am. J. Sc, xxix, 263. 



Sands from Brazil, Gorceix, Bull. Soc. Min., viil, 32. 

 Muscovite. Wakefield, Canada, analysis, Genth, Am. Phil. Soc, Philad., Oct. 2. 



