lo] 



VOLUMES XXI-XXX. 



471 



Minerals of Lyon Mt., N. Y., 

 Whitlock, 23, 232. 



— measurement of the optic axial 

 angle of, Wright, 24, 317. 



— mercury, from Texas, Hille- 

 brand and Schaller, 24, 259; 29, 

 367- . 



— radium, etc., in, 22, i, 4. See 

 Radio-active. 



— reproduction, Tchiruwinsky, 23, 

 395- 



— Rock-forming, Johannsen, 27, 

 490. 



— of Southern Norway, Brogger, 

 24, 282. 



— Tables of, Penfield, 24, 448. 

 MINERALS. 



Alaite, Central Asia, 30, 360. 

 Alamosite, Mexico, 27, 399. 

 Albite, 24, 255. Actinolite, 23, 

 32. Amphibole, composition, 



23, 23; formation, 22, 403, 435; 

 from Linosa, 26, 187. Anhy- 

 drite, Kansas, 29, 260; twin 

 crystals, 24, 487. Anophorite, 

 Baden, 30, 90. Anorthite, 

 soda, 29, 64. Antlerite, 30, 

 311. Argentite, Colorado, 25, 

 507. Argyrodite, Bolivia, 23, 

 20. Arizonite, Arizona, 28, 

 353. Arsenopyrite, New Jer- 

 sey, 29, 177. Asbestos, Can- 

 ada, 21, 255. Astrophyllite, 

 Massachusetts, 29, 215. Ata- 

 camite, twin crystals. Chili, 

 30, 16. 



Barbierite, 30, 358. Barite, 

 Maryland, 21, 369. Bellite, 

 Tasmania, 22, 469. Bemen- 

 tite. New Jersey, 29, 182. 

 Benitoite, California, 24, 448; 

 crystal form, 27, 398. Beryl 

 crystals, 22, 217; presence of 

 alkalies in, 30, 128; water in, 

 26, 115. Bismite, 29, 173. 

 Bityite, Madagascar, 30, 90. 

 Blodite, Chile, 26, 347. Bra- 

 voite, Peru, 24, 151. Brochan- 

 tite, Chili, 30, 24. Brugnatel- 

 lite, 30, 90. 



Calamine crystals, Organ Mts., 

 N. M., 28, 185. Calcite crys- 

 tals, Kelly's Island, Lake 

 Erie,- 28, 186; New Jersey, 



24, 426; phosphorescent, 21, 

 301. Calomel, Texas, 24, 273. 

 Canfieldite, Bolivia, 23, 21. 

 Carlosite, California, 24, 448. 

 Carnegieite, 29, 52. Carno- 



MINERALS. 



tite, radio-activity, 25, 280. 

 Celestite, Canada, 21, 188; 

 Kansas, 29, 261; Michigan, 



21, 237. Chalcophyllite, Ari- 

 zona, 28, 537. Chalcopyrite 

 crystals, Japan, 23, 59. Chal- 

 mersite, Brazil, 24, 255. Chi- 

 astolite. So. Australia, 24, 183. 

 Chlorite, 24, 255. Chlorman- 

 ganokalite, 22, 470. Chloro- 

 phane, phosphorescence, 23, 

 142. Cinnabar crystals, China, 



26, 517. Cobaltite, Northern 

 Ontario, 21, 275. Connellite, 

 Arizona, 28, 537. Copper, 

 crystallized, Arizona, 23, 232. 

 Corundum, N. Carolina, 21, 

 253; pseudomorph after, from 

 Perth, Ontario, 22, 52. Covel- 

 lite, Colorado, 29, 358. Cuspi- 

 dine, New Jersey, 29, 185. 



Dahllite, 30, 309. Datolite, New 

 Jersey, 28, 187; 29, 185; West- 

 field, Mass., 22, 21. Deloren- 

 zite, Italy, 28, 83. Diamond, 

 transformation into graphite, 

 29, 362. Diamonds in Africa, 



27, 489; Arkansas, 24, 275; 

 in Kimberlite, 25, 87. Diop- 

 side, 27, i; water in, 26, 115. 

 Dolomite, Kansas, 29, 261. 

 Doughtyite, Colorado, 22, 470. 



Edenite, 23, 38. Eglestonite, 

 Texas, 24, 271. Enargite, 

 Colorado, 29, 358. Enstatite, 

 formation, 22, 397. Epidote, 

 pyrogenetic, Butler, 28, 27. 

 Evansite, Idaho and Alabama, 



24, 155- 



Feldspar from Linosa, 29, 52; 

 decomposition, 23, 231; deter- 

 mination of, 21, 361. Fluorite, 

 Kentucky, 21, 84; New Jer- 

 sey, 29, 177; studies in, 21, 

 405. Fosterite, formation and 

 optical constants, 22, 390. 

 Franklinite, New Jersey, 29, 

 180. Friedelite, New Jersey, 

 29, 183. 



Gadolinite, Australia, 23, 464. 

 Gageite, Franklin, N. J., 30, 

 283. Gahnite, Mass., 26, 584; 

 New Jersey, 29, 179. Gedrite, 

 Canada, 25, 509. Gehlenite, 

 Mexico, 26, 545; Georgiade- 

 site, Italy, 28, 83. Giorgiosite, 



22, 469. Glaucochroite, New 

 Jersey, 29, 181. Goethite, 



