INDEX TO VOLUME 11 Pnepanro sv L. S. Relrsonr, Original articles are in bold lace type; abstracts and cross references are in ordinary type. Only minerals described in more or less detail are indexed; titles oI abstracted articles are not repeated when cross indexed under the authors' names. Acanthite, argentite. (Emmons, Bromellite.(Aminoft)........ 135 Stockwell,andJones....... 326 8run,A...... 77 Addition and subtraction rule in Buttgenbach,H...-.. .. 168 geometrical crystallography. Buttgenbachite.(Schoep)....... 216 (Rogers). 303 Ahlfeld.. 168 Cancrinite, high temp. hyilro- Albite, unusual occurence. (Fen- thermal mineral. (Larsen, ner) 255 Foshag)... 300 Alkali-feldspars, thermal expan- Cannizzarite. (Zambonini, De- sion. (K6zu, Saiki). 106 l'iore,Carobbi)...... ...... 194 Allen, E. T. see Wright, F. 8.. 67 Carnotite,Col. (Hess,Foshag). 66 Alling, H. L. Abstracts of recent Carobbi,G. seeZambonini, F.107, 194 pape$ on feldspars.. 105 Celestite.(Hawkins). ........64,165 Alunite, identity with newtonite Chalcopyrrhotite.(Geijer). ... 138 (Foshag). 33 Chalmers, R. M. Geological Maps.[Bookreview] ........ 286 Amblygonite-montebrasite series. Chlorite, a polycomponent sys- (Winchell) 246 tem. (Winchell)..... .. .. 64 Aminofi, G..... l31,2l7 Chloritoid, N. Car. (Stuckey) 186 Argentite and acanthite. (Em- Chromeore, Md. (Shannon).. 16 mons, Stockwell, and Jones) 326 Chrysotile,radiated. (Foshag).. 38 Arsenides of Co, Ni, Fe, oxida- Colloid chemistry, applicationsto tion of. (Walker) . 66 Mineralogy. (Fisher, Simons) Autunite 37 . 65,r24,200 Conichalcite,Nev.(Gillson).. .. 109 Baddeckite 13 Cook,C.W.[Bookreview] ..... 286 Bauldaufite(Mtillbauer). .. M Cooper,R. A. 77 Barroisite (Murgoci) 167 Cornuite, (Flahn). 217 Barysilite, Franklin Furnace. Crawford, A. L. Euhedral oligo- (Shannon,Berman)........ 130 clase,periclinehabit.........239 Bauer, L. H, and Palache, C. Crystal habit, Iactors influencing. Hyalophane. 172 (Walcott) . .. .221,259 Befanamite.(Lacroix). ... ..... 137 Crystal structure model.(Wyckoff) 68 Beidellite. (Larsen,Wherry) . .. 167 Curtisite.(Wright, Allen).... .. 67 Bendig, M. see Kalb, G.. - . .138,254 Cyanotrichite(Palache,Vassar) 213 Berman, H. seeLarsen, E. S.. 1 Berman, H. See Shannon, E, V.. 130 De Fiore, O. See Zambonini F. 194 Bolivianite. (Pauly)....... .. 194 Doubtful mineral species, "Iar- Bowen, N. L. and Morey, G. W.. 67 oelite"(Winchell)... ......66,82 Brauns,A. andBrauns,R....... 77 I)roogmansite(Buttgenbach).... 168 343 344 INDEX Dumortierite, Nev. (Fairbanks).93, 135 Foye, T[. G. Thulite, Haddam, Dumortierite, a commercialmin- Conn..... .. ..64,210 eral. (Peck).. .. 96 Frankenfield, J. S. see Hawkins, Eakle,A. S. Extensionin mineral- 4.c.. .. zsz Fretz, ogicinstruction 45 A. H. Memorial of F. B. Peck.. Elatolite. (Fersman). r07 . ... Ss Ellsworth, H. V. Euxenite-poly- Gedney,E. K. seeFisher, L. W. 334 crase,Ont... .. 329 Geijer,P...... 138 - Toddite, new uranium Geode concretions, S. Dak. nineral, Ont.. 332 (Schwartz).............. 30 Emmons, R. C., ftockwell, and Geological Maps-The determi- Jones, Argentite,acanthite... 326 nation of structural detail. - seeWinchell, A. N.. 115 (Chalmers) [Book review.]. 286 Euxenite-polycrase. (Ellsworth). 329 Gillson, J. L. Conichalcite,Nev.. 109 Extension in mineralogic hstruc- - Optical notes on minerals tion.(Eakle).... +J fromBrewster,N.Y..... .. 2Bt Pigeonite, Connecticut Fairbanks, D. E. Dumortierite. .93, 135 valley.. - Zeophyllite, Idaho, with 317 Gilpinite and identity note on Mallard's constant... 249 iohannite, oI.(Larsen,Berman)........ 07 I Goranson, Faroelite,doubtlul species. (Win- R. W. Determination ofplagibclasefeldspars.... chell)... .66,82 139 Gordon,S. G... Feldspars,abstracts.(Alling).... 105 . .. .42,64 Grahan, W. A. P. Notes Feldspars, composition and for- on horn- blende.... mational changes.(Johansson) 105 .... .... 118 Graphic granite, (Schal- Fenner, C. N. Unusualoccurrence origin of. ler).... ofalbite. 2Ss 66 Ferrous minerals, green color. Hagatalite.... 137 (MacCarthy). 321 Ilahn, F. V. v.. 217 Fersman,A. E. Minerals of Kola Harvard University-contributions peninsula..... 2gg from dept. of Mineralogy and r07 petrography. ....... 1,139 Fisher, L. W. and Gedney, E. K. Hawkins, A. C. Directionalfactors Mineral localities of R. I.- in radiodetector crystals. .65,164 ProvidenceCo..... .. 334 - Pyrite and celestite, Ro- - and Simons, F. L. Appli- chester, N. Y.. .64,165 cations ol colloid chemistry to - Tourmaline crystals, S. W. mineralogy. ..65,124,200 Africa. .. 252 Flink, G. Lingban - and its minerals 195 and Frankenfield, J. S. .. 218 Pyrite, Cornwall, Pa. 252 Fluotaramite.(Morozewicz)..... 2lI Henderson, E. P. see Schaller, Foshag,TV. F. Identity oI new- w. T... 5 toniteandalunite........ J3 - seeShort,M.N....... 316 - Radiatedchrysotile, Frank- Hess,F. L, seeLarsen, E. S.. 155 IinFurnace. 38 -andFoshag,W.F...... .. 66 - seelfess, F. L.. 66 High temp. quartz, structure of. -- seeLarsen, E. S.. 300 (Wyckofi). 67 INDEX 345 Hoelite (oftedal) 138 - and Foshag, w. F. can- Holden, E. F., memorial of. crinite, high temp.hyilrotherm- (Kraus)...... 57 al mineral 300 Hornblende,notes on. (Graham) 118 - Hess F. L. and Schaller, Hunt, W. F. [Bookreviews.] . .216,286 W. T. Uranium minerals f55 Hureaulite. 103 - seeshannon, E. v. 28 Eyalophane, Franklin Furnace - and Wherry, E. T. 167 . (BauerandPalache) 172 Laumontite, Oregon.(McClellan) 287 Lehnerite.(Miillbauer) . .. .. M Iozite.(Brun).... .. 77 Lee, O. f. Decolorization of Iron beidellite. (Ross,Shannon) 168 methyleneiodide.. 2l -[Bookreview]... .. 105 Jalpaite.(Kalb,Bendig) . ...138,254 Lithiophilite and rare phosphates. Johannite and gilpinite. (Larsen, (Schairer) ........65,101 Berman). .. 1 Lonsdale, J. T. Niter and soda Johansson,H. E. 105 niter,Texas .. 189 Johnston,IV.D. Jr., Marcasitein- clusionsinfluorite 174 MacCarthy, G. R. Green color of Jolly balance,calculating. (Kraus) 169 ferrous minerals . 321 Jones,R.H. B.,seeEmmons,R.C.326 Magnetoplumbite. (Aminofi) 217 Mahopac mine, Brewster, N.Y., Kalb, G. andBendig, 1\{.. 138,254 minerals of (Gillson) 28L Kawai,K.... .. 218 Mallard's constant, (Fairbanks). 249 Kerr, P. F. Strain structure in Manganif erous serpentine. (Shan- qlu;fitz.. 67,206 non. Larsen) 28 Kensington mica mine, Md., Manganolangbeinite. (Zambonini, mineralsfrom. (Shannon) 35 Carobbi) IOT Kimura, K 137 Marcasite inclusions in fluorite. Kirsch,G. 219 (Johnston) 174 Kola peninsula minerals. McClellan, H. W. Laumonite, -(Fersman).. 289 Oregon. 287 Kolovratite. (\iernadsky) 136 Mellor, W. Comprehensive Kornelite. (Krenner) 254 J. Treatise on Inorganic Chem- Kostyleva,E.. 136 105 K6zu,S... .. 106 istry. [Bookreview]. Kraus, E, H. Calculating Jolly Methylene iodide, decolorization balance .. 169 (Lee).. 2l - Memorial oI E, F. Holden 57 MineralogicalSociety of America. - [Bookreview] 215 Sixth annual meeting 59 Krejci, A. 136 -Constitution and By-Laws 69 Krenner,J. 219,254 Mineralogy of N. S. Wales. (Smith) review.] 216 Lacroix, A. 137 lBook (Cooper) 77 Lambertite . 157 Modderite. Laneite (Murgoci). 167 Montebrasite-amblygoniteseries. 246 Lingban and its minerals. (Flink) 195 Morey, G. W. seeBowen, N. L. 67 Larsen, B. S. and Berman, If. Morozewicz,!. .217,2L9. Identity of gilpinite and johan- Mountain, E. D 107 nite.. I Miillbauer, F. M 346 INDEX Murgoci,G..... 167 Peck, A. B. Dumortierite, a com- Muscovite, purple, N. Mex. mercialmineral.... ..... 96 (Schaller,Henderson). ... 5 ......63,64 Peck, F. B. Memorial of. (Fretz). 55 Nephelite syenite minerals, Ont. Pegmatite minerals, origin. (Schal- (Walker, Parsons) 65 ler)..... 66 Newark Mineralogical Society 43, 133 Penroseite. (Gordon) 42 Newhouse, W. H. [Book review.]. 192 Philadelphia Mineralogical So- New minerals, including doubt- ciety. .20, 41, 74, lM, 132, t66, ful and discredited species. .....L92,2t5,344 M, 77, 107, 136, 137, l3g, t67, Pigeonite, Irom traps of Conn. 168, 194, 216, 217, 218, 219, 254 valley.(Gillson).. .. 317 Newtonite and alunite. (Foshag). 33 Pirrson, L. V. Rocks and rock New York Mineralogical Chfi. .39,72 minerals. [Book review.]. 286 Nickeliferous vermiculite and ser- Pisekite. (Krejci) 136 pentine. (Ross,Shannon) ... 90 Pitchblende.. 16l Nigglie, P. Versuch einer natiir- Plagioclase feldspars, determina- lichen Klassifikation der im tionof.(Goranson).......... 139 weiteren Sinne magmatischen Potash-oligoclase and anortho- Erzlagerstiitten. [Bookreview] I92 clase.(Mountain). 107 Niter and soda niter, Texas. Preservation of minerals. (Par- (Lonsdale).. .. 189 sons)... .. ..66,79 Nordalbanische Erzbezirk. (No- Pufahlite. (Ahlfeld) 168 wack) [Book review] l9l Pumpellyite. (Palache,Vassar). 218 Nowack, E. Der nordalbanische Pyrite and celestite. (Ilawkins) 165 Erzbezirk. [Book review] l9l Pyrite, Cornwall, Pa. (Hawkins, Frankenfield) 252 Obrutschew, W. A. Ueber die Sys- tematik der Erzlagerstdtten. Quenselite. (Flink). 218 [Bookreview.].... 190 Oftedal,I... ....... 138 Radio detector crystals, direction- Oligoclase, euhedral, pericline alfactors(Hawkins) .......65, 164 habit. (CrawIord).. .. .. 239 Radiophyllite. (Brauns, 4., Opacity. (Fairbanks)... .. o/ Brauns.R.).... 77 Optic angle, influence of temp. Ramsayite. (Kostyleva)..... 136 (Kdzu, Saiki) 106 Reed, R. D. seeRogers, A. F. .. 23 Oxygen atoms, dimensions in Refractive indices, methods lor crystals (Wherry) 63 determining. (Winchell, Em- ' Oyamalite. (Kimura) l.) / mons). 115 Reitsema, Tj. L. [Book re- Palache, C. and Vassar, H. B. views.l ..... .190,191 Cyanotrichite ZLJ Reniforite. (Kawai) 218 . 2r8 Rhode Island. mineral localities