INDEX TO VOLUME 22

T,eadingarticles are in bold face type I notes abstracts and reviews are in ordinary type. Only mineralsfor which definite data aregiven are indexed.

Accessory minerals, heavy, of the Ashby, G. E. with Frondel, C. Val Verde tonalite. (Wilson). . 122 Oriented inclusions of magre- Accessory minerals in igneous and titeinmuscovite.. .. I04 metamorphic rocks, study of. Atlas der Analysen-liniender wich- (Reed). 73 tigsten Elemente. (Li;we) Accessory rninerals of igneous [Book review]. 809 rocks,study of. (Taylor)..... 686 Atomic structure of minerals. Aenigmatite, note on. (optical (Bragg) [Book review] .. 1006 data) (Bowen) 139 Attapulgusclay.(Kerr).... 534 Ahlfeld,F.. . 7l (Das)Ausbliihen der Salze.(Schultze) Albite and beryl, contemporary [Book review]. 311 crystallization vs. replace- Austinite... 71 (Smith, ment. (Shaub) 1045 Autunite, new locality for. Maslowski).. Albite-crystallographic data. . 294 .... 1184 Axial graphic Allen, V. T. Study of Missouri glau- angle, method of de- terrrining, from refractive conite. . 1180 in- dices.(Smith) .....217,675 Allodelphite 526 Axial ratios of crystals belonging Alunite and the jarosites, crystal to the oblique systems, x-ray structure of. (Hendricks). . . 773 determination of. (Buerger).. 416 Amphiboles. Petrographic study of Axinite, crystallography of, and the minerals from Tertiary rocks norrnal setting of triclinic crys- of San region, Colorado. Juan tals.(Peacock)...... 588 Irving, Gonye4 Lar- @arsen, Arinite-transfonnation of coordi- sen).. . 889 nates.(Dounay)...... 621 Amphiboles, regeneration of, from their melts at norrnal pressure. Babingtonite--rrystallographic data29 5-7 (Grigoriev,Iskiill)...... 169 Babingtonite. (Richmond). 630 Anauxites and kaolinites, densities Biickstrtimite. 52 and structural relationships of , Balinkin, I. A.. 220 (Gruner). 6J5 Bandy, M. C. Lopezite,a new min- Anderson,G. H... 208 eral. . 929 Andorite (?) from Oregon, crystal- 207 lography of. (Schaller). . 651 Bannister, F. A. and IIey, M. II. Annabergite... .. 328 Identity of penroseite and Antigorite, X-ray d,ata. gg blockite. 3t9 Ant-Wuorinen,J...... l13l . .71,311,t072 Apatite-phlogopite deposits, Ca- Barth, T. F. W. Crystallographic nadian,origin of. (Landes)... 213 studies ir the vivianite group. 325 Apatite structure, substitution of Bayley, W. S. Mineralogyts con- SiOr-and SOr-Broupsfor POa- tribution to other sciencesand groupsin. (McConnelt). . . 977 to industry. 747 Arseniosiderite-analysis..... 483 Behre,C. H., J.. 2I5 Arsenopyritegroup... .. 53 Berg, E. L. Occurrenceof diaspore Arsenostibite.(Quensel)...... 1131 inquartzite...... 997 1191 tr92 TEE AM EKICAN MI NERALOGIST

Berman, If. Constifution and clas- Bowen, N. L. Note on aenigmatite. 139 sification of natural silicates. . 342 206 215 - and Ellestad, R. B. Leucite - ard Gonyer, F. A. Roweite, ardpseudoleucite... . 4O9 a new mineral from Fraaklin, Bradley, W. F., Bray, R. I{.' wittr N. J.... 301 Grim, R. E. Mica in argilla- Beryl and albite, contemporaneous ceoussediments..... 813 crystallization vs, replacement. Bragg, W. L. Atomic structure of (Shaub). .... 1045 minerals.[Bookreview]...... 1006 Beudantitegroup.(Lemmon)..... 939 Brammall,A..... 3lI Biographisch-literarisches Hand- Braunite from Mason Co., Teras. wdrterbuch fiir Mathematik, (Ilewett, Schaller). 785 Physik mit Geophysik, Bravais, Law of, extetrsion of. Chemie, Kristallographie und (Donnay, Flarker). 446 verwandte Wissengebiete.VI, Bray, R. f[., Bradley, W. F.r with Part II. (Poggendorff)[Book Grim, R. E. Mica in argilla- reviewl ..... 1005 ceoussedimerts..... 813 Biotite. Petrographie study of min- Brickerite.(Ahlfeld,Mosebach)... 7l erals from Tertiary rocks of Buddington, A. F. Memorial of San Juan region, Colorado. AleranderII. Phillips...... 1094 (Larsen, Irving, Gonyer, Lar- Burkeite, synthetic, crystallog- sen)... 898 raphyof.(Ramsdell)...... 213 Biotites of the Carsphairn igneous Bustamite, structural lattice and complex, composition and classification of. (Berman, paragenesisof. (Deer) 69 Gonyer) 215 Biotite, rare-alkali, from Kings Butler,J.W.,Jr...... 218 Mt,, N. Carolina. (Hess, Buerger, M. J. Common orienta- Stevens). .209, 1040 tion and classification of crYs- Birefringence color, method for es- tals based upon a marcasite- timating.(vonHuene)...... 926 like packing. 48 Birefringence, universal stage Unit cell and spacegrouP of method of determining. (Em- cubanite. .... lllT mons).. 217 X-ray determination of lat- Bjlrlykke, H. Granite pegmatites tice constants and axial ratios of southemNorway...... 241 of crystals belonging to the Blockite and penroseite, identity of. oblique systems. 4t6 @annister,Hey)..... 319 and Parrish, W. Unit cell Bloomer, R. O. Stilbite in the bor- aod spacegroup of tourmaline. der conglomerate near Cul- (An erample of inspective peper,Va.. 309 equi-inclination keatment of Blueberry Mt., Woburn, Mass., trigonalcrystals.)...... 1139 paragenesis of tle minerals ...208,210,218 from.(Richmond)...... 290 Buerger, N. W. Unit cell and space Bobierite-*-ray data 333 Boericke, W. F. Prospectingand T:::1 :::T::":::' iill l,,*, operating small gold placers. [Book review] 67 Cabreritg-crystallographic and r- Bomb for use in hydrothermal ex- ray data. . .328,332 perimentation.(Morey, Inger- Calaverite, etch tests on. (Short). . 667 son)...... ll2l Calciumferri-phosphate.(Efremov) 811 TOURNAL MINERALOGICAL SOCIETY OF AMERICA 119J tt94 TEE AM EKICAN MIN ERALOGI ST

R' M' Mutual Enargite antl famatinite (luzonite), and Dreyer' distinctionbetween.(IIar-interferenceinmicrochemical 949 court).. 517 determinationoforeminerals' incrustation Epidote.. . . . 2g4 Frondel, C' Selective 1104 pivtttria"-..vstallographic and ofminerals' " G' E' Oriented r-raydata. .. -...326,33t and Ashby' of magnetite in Errur", ft. H. New microchemical inclusions 104 testforselenium...... ' ' lt28 muscovite""

Galbrait'hr F' W' Microscopic.study Fahey, J. J. with Glass, J. J. hematite in Graftonite from Greeniood, of goethite and eastTexas' 1007 Maine. " " " tOaS brownironoresof Boulder Co" Col'' Fairbairn,H.W.. zIt Galena from parting on' (Wahl- famatinii" (luzonite) and enargite, octahedral 906 tlistinctionbetween'(Ilarcourt) 517 strom) ' 'W. group, relation between Faust, G. T. with I{unt, F' Garnet - and Pencatite from Orgaa Mts., chemical composition 751 N.Mex. ''' ffst physicalproperties'(Fleischer) (Nikitin) Gem-stone materials' identifica- (Die)' Fedorow-Methode. tion by emission spectra' igookreviewl...... '. 809 ' ' 796 Feldspar, authigenic, in shales and Glowell) " Faheyt o"..rr."rrce of. (Gruner,'. Glass, J' J' an

2I6 New law of crystal morphology Goranson, R. W. Silicate-water ertending ttOsmotic the Law of Bravais. 446 systerns: pressurert Hastingsite in theralite from Crazy ofsilicatemelts...... 4gs Mts., Mont. (Wolff). 742 Gordonite, morphology of. (pough) 625 Hautefeuillite. JJ' Gosseletite.(Corin). 72 Hawley, J. E. Riebeckite in quartz Graftonite from Greenwood, veins from Michipicoten dis- Maine. (Glass,Fahey). . 1035 trict, Ontario. t099 Granite pegmatites of southern Headdenite.(Quensel) 876 Norway. (Bjlrlykke). 241 Heins, P. S. Thenardite crystals Graton, L. C. Technique in min- from RhodesMarsh, Nev.. . . JU/ eralography at Flarvard. . . . 4gl Helium ratio of Florida anhydrite. Greenalite-chert in Ordovician (Urry)..... 212 rocks of the southern uplands Helvite from Butte district, Mont. of Scotland.(Kennedy). 69 (Hewett). 803 Grids for determination of non- Hematite and goethite in brown opaque minerals. (Donnay, iron ores of East Texas. M6lon). 2L8 (Galbraitl)...... 1007 Grigoriev, D. P. and Iskiill, E. W. Hematite inclusionsin muscovite. Regeneration of amphiboles (Fondel,Ashby) 113 from their melts at normal Hendricks, S. B. Crystal struc- pressure. 169 fure of alunite a:rd the jaro- Grim, R. E., Bray, R. H. and sites. . 773 Bradleg W. f,'. Mica in argilla- Henry, N. F. M. 312,1072 ceoussediments.... 913 Herapathite, crystallography of. Groves, A. W. Silicate analysis. (West).. ... 731 [Bookreview]..... 1005 Hess, F. L. antl Stevens, R. E. Gruner, J. W. Composition and Rare-alkali biotite from Kings strucfure of stilpnomelane . 209, 912 Mt., N. Carolina. .209,1040 --- Densities and structural Ilewett, D. F. Helvite from Butte relationships of kaolinites and district, Mont.. 803 anauxites. 6J.) and Schaller,'W. T. Braun- Structure of serpentines. 97 ite from Mason Co., Texas. . . 785 212 IIey, M. H. with Bannister, F. A. -=-- and Thiel, G. A. Occur- Identity of penroseite and rence of fine grained au- blockite. 319 thigenic feldspar in shales a:rd 1072 silts.. . 942 Heyl,G. R...... 213 Gypsum in Kentucky, new occur- Hilgardite, a new mineral from rence of. (Munyan). . l0IO Choctaw salt dome, Louisiana. (Ifurlbut, Taylor). t052 Halite, colorless and blue, spectro- Holmes,A. 68 graphic examination of. (Ken- Hornblende-analysis and optical nard, Howell, Yaeckel). .... 65 data...... 895 Halite, unusual occurrence of. Hornfels-granodiorite transitional (Spirotr)...... g3t facies at Cornucopia, Oregon. Ilarcourt, G. A. Distinction be- (Goodspeed)..... 216 tween enargite and famatinite Howell, D. H. Identification of cer- (luzonite). SI7 tain gem-stone materials by Harker, D. with Donnay, J. D. H. theiremissionspectra...... 196 lt96 THE AM ERICAN MINERALOGIST

P. Yaeckel, M. P. with Ken- Iskiill, E. W. with Grigoriev' D. nard, T. G. SpectroscoPicex- Regeneration of amPhiboles normal amination of colorlessand blue from their melts at 169 halite. . 65 pressure Hunt, W. F. and Faust, G. T. of' Pencatite from Organ Mts.' Jarosites, crystal struchrre 773 N. Mex.. .. 1151 (Ilendricks)...... -.. Bookreviews..... 67,810'1005 Johannsen,A. DescriPtive Petrog- igneous rocks' Hurlbut, C. S., Jr. SYnadelPhite raphy of the antlplumbosynadelphite..... 526 Vol. IlL lntermediate rocks. 1004 and TaYlor, R. E. Hilgard- [Bookreview]. .... " 216 ite, a new mineral sPecies Johnston,W. D., Jr... '.. 312 from Choctaw salt dome, Joplin,G. A...... Louisiana' " ' 1052 Hutton, C. O.. . 312 Kaolinite deposited from solution. 933 Hydromuscovite..... 311 (Tarr, Keller). densi- Hydrothermal veins and Pegma- Kaolinites and anauxites, tites. (Landes) 551 ties and strucfural relation- (Gruner). 855 Hypersthene, opticallY Positive, ships of. from Manchuria. (Tsuru, Keller, W. D. with Tarr, W. A' Henry) 312 Kaolinite dePositedfrom solu- tion, . . . 933 at Ice, symmetry of. (Rogers) 209 Kelley, V. C. Mineralization 140 Illite-analysis and r-raY data. Crestmore,Calif.. ' (Grim,Bray,BradleY)...... 816 Kennard, T. G., Howell, D. H. and Inclusions, oriented, of magnetite Yaeckel, M' P. SPectrograPhic in muscovite. (Frondel' Ashby) 104 examination of colorless and Incrustation, selective, of min- blue halite. OJ 69 erals.(tr'rondel)...... 1104 Kennedy,W. Q...... 534 Index liquids, checking with the Kerr, P. F, AttaPulgusclaY.' 195 microscope.(Slawson) 210 Memorial of RoY J. Colony' 328 Ingerson, E. Accurate orientation Kitttigite. 206 ofthinsections...... 2L9,76O Kraus.E. H.... '. Bookreview...... 1185 Krennerite, crystal structure of. 207 with MoreY, G. W. Bomb (Tunell, Ksanda) (Short). oo, for use in hydrothermal ex- Krennerite, etch tests on. . perimentation ...... 1l2I Ksanda, C. J. with Tunell, G. Melting of danbur- Space grouP and unit cell of syl- 728 ite: liquid immiscibilitY in sYs- vanite . 207 tem CaO-BzOs-SiOz.. 37 Introduction to the studY of min- 811 erals. (Rogers) [Book review] . 936 Labite. (Efremov). Ex- Iron-rhodonite, pYroxmangite. Lamprophyres of the BaY of (Perutz) 809 ploits, Newfoundland'(HeYl) ' 213 K. Pegmatites and hY- Irving, J., Gonyer, F. A., Larsent Landes, K. E. S, 3rd., with Larsen, E. S. drotherrnalveins..'.. 551 2t3 Petrologic study of the min- erals from the TertiarY vol- Larsen, E. S., frving, J., GonYert 3r<1. canic rocks of the San Juan F. A. and Larsen, E' S. region, Col.Amphiboles.Biotite 889 Petologic studY of the min- JOURNAL MINEMLOGICAL SOCIETY OF AMERICA t197

erals from Tertiary volcanic rocks of San Juan region, Maslowski,E. O. E. with Smith, Colo. The amphiboles. Biotite. 889 E. S. C. New locality for au- Bookreview...... 1004 tunite. . I 184 Larsen, E. S., and Jr. Gonyer, tr. A, Matildite. (Ramdohr) 72 Da}eite, a new uranium min_ Mazapilite-crystallograph ic data eralfromlfyoming...... 483 561 McCabe,L. C.. . 219 Lattice constants of crystals be_ McConnell, D. Substitution of SiOr longing to the oblique systems, and SOr-Troups for pOr- x-tay deterrnination of. groups in theapatite structure (Buerger). I 416 ellestadite,the end member. . 977 Lattice constantsof singlecrystals, Meier, A. E. with Tomlinson, apparatus for the precision de- W. H. Origin of montmorillon- terminationof.(Buerger).... 2lg ite..... Lawsonite, ....1124 occurrence in glauco- M6lon, phane-bearing J.. 218 rocksfrom New Menzel,H..... Caledonia.(Joplin). 7l 312 Merwin, H. E. and posnjak, E. Lead-zinc ores, Wisconsin, miner_ Sulphate incrustations in Cop- alogyof.(Behre). 2Is per Mine, Bisbee, y'.l:iz. Leech,J.G.C.... Queen 56T ...... 311 Metakernite. (Menzel, Schulz, Lemmon, D. M. Sloodhouseite, a Deckert) . 11 new mineral of the beudantite Mica in argillaceous group.. sediments. 939 (Grim,Bray, Bradley)...... 813 Leucite-diopside-silica.(Schairer). 213 Microchemical detennination of Leucite and pseudoleucite. (Bowen, ore minerals, mufual interfer_ Ellestad). 4Og encein.(Frbser,Dreyer)..... g4g Lithium, distribution of, in rocks Micro-pyknometric method for and minerals as revealed bv specificgravity determination. qualitative spectrum analvsis. (Bannister,Hey)... .. I07Z (Strock).:...... 212 Millerite, new occurrence of. Ldllingite group. . 51 (Northup) ... 1184 Lonsdale, J. T. Plantersville mete_ Mineralnames.(Spencer)...... 6g2 orite, Grimes Co.,Texas. g77 . .2I3, Mineralization at Crestmore, Calif . Lopezite,a newmineral. (Bandy). . 929 (Kelley) I4O Ldwe, F. Atlas der Analysen_linien Mineralogical research, trend of. der wichtigsten Elemente. (Tarr)...... 206,869 [Book review]. 809 Mineralogical Society of America. Luzonite...... Sl7 ConstitutionandBy-Iaws...... 223 List of correspondents.fellows Maclellan,D. D... 2Og and members. 227 (Das) Magma und seineprodukte. List of former officers I.(Niggli)[Bookreview]..... and meet- _ 1185 rngs... . 221 Marble, J. p. Further study of tle Nominations for officersfor 1938. 1004 age of Great Bear Lake pitch_ Preliminary list blende. of titles for lgth 564 annualmeeting...... 11gg Marcasite-like packing, cornmon Proceedingsof 17th annualmeet- orientation and classif cation f or rng..... 199 crystals based on. @uerger). 4g Mineralogical Society of Marcasite sink-hole Great deposits of Britain and Ireland. central Missouri. (Tarr). . . g30 .214, . . 68,3 1 1, 808, 1072 ST 1198 THE AMERICAN MINERALOGI of Society of Southern Pabst, A. Crystal structure Mineralogical 861 California. 937 plazolite. at flarvard, tech- Palache, C. Chalcomenitefrom MineralograPhY 790 nique in. (Graton). 49L Bolivia. . . . 745 contribution to otJrer _- List of published works. Mineralogyts 63 sciences and to industrY' Note on Powellite. on (Bayley). 147 SuPPlementary note ' Ll23 Monazite, note on morPhologY of. chalcomenite' "' (Parker) 572 Paragenesisof the uranium-bearing minerals of the Montmorillonite, origin of' (Tom- and associated near Graf- linson,Meier) .. "" lI24 Ruggles' Pegmatite N. HamP' (Shaub) 207 Moore, C. II., Jr. Staurolite area tori-enter, 70 of Patrick and HenrY Coun- Parawollastonite'(Peacock)""" ties,Va...... 2t1,990 Pardee, J. T., Glass, J. J' and low- Motey, G. W. a:r

Phillips, Alexander If., memo- Quartz porphyroblasts, develop- rialof.(Buddington) .. . 1094 ment of, in a siliceous horn- Pitchblende, Great Bear Lake, age fels. (Goodspeed).. 133 of. (Marble). . 564 Quartzite, transfusion of, Kiloran Plagioclase porphyroblasts, devel- Bay, Colonsay.(Reynolds) .. 68 opmentof.(Goodspeed)...... ll33 Quensel,P...... S75,876,1131 Plantersville meteorite, Grimes Quinn, A. a:rd Young, J. A., Jr. Co.,Texas, (Lonsdale). . . . .213,977 Minerals and associatedrocks Plazolite, crystal strucfure of. at Copper Mine Hill, Rh. (Pabst). 861 Island.. .. 279 Plumbosynadelphite and synadel- Quirke,T. T. .217.219 phite.(Ilurtbut)...... 526 Poggendorff, J. C. Biographisch- Ramdohr,P.. . 72 literarisches Handw

931 Schultze, K. Das Ausbltihen der halite.' E... '. . 810 Salze.[Book review]. . 311 Starik,I. Patrick and Schulz,H..... 7l Staurolite area of Va. (Moore)' Scorodite-analYsis and oPtical Ilenry counties, . . -211,990 data.. . 482 cell and space Seignette and related salts, optical Sterobergite, unit .216,847 properties of. (Winchell). . . . . 1088 groupof. (Buerger). . - . .' . Fisher, D. Selenium,new michochemicaltest Stevens, E. H. with J' struc- for. (Evans) tt28 Building nucle,rr crYstal 268 Senstius,M. W. Book review. ' ' . . 311 turemodels. """" OJ with Serpentines, structure of. (Gruner) Stevens, R. E., Glass, J. J. Massive low- Shaub, B, M. ContemPorareous Pardee, J. T. Brewer crystallization of berYl and fluorine toPaz from ' 1058 albite vs. rePlacement...... 1045 mine, S. Carolina. " 207 witl Hess, F. L. Rare- Kings Mt'' Short, M. N. Etch tests on calave- alkali biotite from .. '209,1040 rite, krennerite and sylvanite ' 667 N. Carolina. " of Silicate analysis. (Groves) [Book Stewart, D., Jr. Occurrence 1000 reviewl...... 1005 detritalauthigenicfeldspar''' some rocks Silicate synthesis with laboratory PetrograPhY of Islands gasfurnace.(Dollar)...... L072 from the South OrkneY Archipelago. 178 Silicate-water systems: "Osmotic and the Antarctic pressurett of silicate melts. Stilbite in border conglomerate 309 (Goranson). .."...: 485 near CulPePer,Va' (Bloomer)' and Silicates, natural, classifcation Stilpnomelane, comPosition (Gruner)., - -'209,9L2 and comPositionof. (Swartz). . structureof. 809 . - -2r5,1073,116r Strock, L. W. Book review. . . " " 2t2 Silicates, natural, constitution and CoPPer classification of. (Berman). . . ' 342 Sulphate incrustations in Ariz. Silicosis, mineralogic studY of. Queen Mine, Bisbee, (Emmons,'Wilcox).. . . -. . .207,256 (Merwin, Poshjak). 567 of nat- Slawson,C.B...... -..' 210 Swartz, C. K. Classification ComPosition Smith, E. S. C. and Maslowski, ural silicates. I. E. O. E. New locality for autu- il....., ....215,1073,1161 (Short). ' ' 667 nite.... '.... 1184 Sylvanite, etch tests on. group and unit Smith, I{. T. U. SimPlified graPhic Sylvanite, space 728 method of deterrnining aP- cell.(Tunell,Ksantta)...... ' proximate axial angle from re- Synadelphite and PlumbosYnadel- 526 fractive indices of biaxial phite. (Ilurlbut)... .. ' on minerals. . .217, 675 Synthetic gems, observations 206 Smith,L.L.Fluorescentsodalite. 304 productionof.(Kraus)... " " (MoreY, Sodalite,fluorescent.(Smith). .'.. 304 System CaO-BzOrSiOz. 37 Sodium-heterosite.(Quensel). . . .. 876 Ingerson) ...... "' Sodium-purpurite.(Quensel).....' 876 System leucite-diopside-silica. 213 Spencer,E...... 311 (Schairer). (Bow- Spencer,L. J. Some mineralnames 682 System NaAlSiOr-FeO-SiOz. 312 en).... 206 Sphalerite from a Pegmatite near 810 Spruce Pine, N. Car. (Ross). . 643 Talasskite.(Nikitin) marcasite Spiroff, K. Unusual occurrenceof Tarr, W. A. Origin of JOURNAL MINERALOGICAL SOCIETY OF AMERICA 1201

sink-hole deposits of central of.(Peacock). ...588,987 Missouri. .214,830 Tsuru, K.. 312 Trend of mineralogical re- Tuhualite.(Marshall). ... 1131 search. ....206.869 Tunell, G. and Ksanda C. J. Space and Keller, W. D. Kaolinite groupandunitcellof sylvanite 728 depositedfromsolution...... 933 207 Taylor, J. H. Study of accessory Turquois in Cornwall. (Russell).. . 808 mineralsofigneousrocks.... 686 Two-circle calculation in the hex- Taylor, R. E. witl Hurlbut, C. S., agonalsystem. (Parsons).... . 581 Jr., Hilgardite, new mineral from Choctaw salt dome, Lou- Ungemachite and clino-ungemach- isiana...... 1052 ite, new minerals from Chile. Tektite problem. (Spencer) 312 (Peacock, Bandy). 207 Tellurium mineralsof New Mexico. Urry,W. D...... 2L2 (Crawford). . . 1065 Tepper,G. H.. . 811 Valencesof iron in pyrite and mar- Thenardite crystals from Rhodes casite.(Buerger). . . . . Marsh,Nevada. (Heins)..... 307 Valentinite and andorite (?) frorn 'W. Thiel, G. A. with Gruner, J. Oregon, crystallography of, Fine grained authigenic feld- (Schaller). 651 spar in shales and silts. . . . . 842 Vanado-magnetite.(Tepper)...... 811 Thiesmeyer, L. R. Vein quartz Varulite. (Quensel) 876 pseudomorphs of cross-fiber Vein filling at Nevada City, Calif. asbestosinVirginia...... 701 (Johnston). 216 Thin sections, accurate orientation Vein quartz pseudomorphs of cross of.(Ingerson). ....219,760 fiber asbestos in Virginia. Tilley, C. E. Pyroxmangite from (Thiesmeyer). 701 Inverness-shire,Scotland.... 720 Virginia diabase, mineralogy of. r072 (Pegau). 872 To-tin"on, W. ff.."a M;t;;,;. ;. Vitrains, refractive indices of. Originof montmorillonite.. .. l1Z4 (Quirke,McCabe). 219 Topaz, low fluorine, from Brewer Vivianite group, crystallographic mine, S. Carolina. (Pardee, studies in. (Barth). 325 Glass,Stevens)...... 1058 Vivianite-r-ray data. 329 Tourmaline, unit cell and space von Eluene, R. Estimating the fn- group of. (Example of inspec- ishing birefringence color of a tive equi-inclination treatment crystal of random orientation of trigonal crystals. @uerger, in a thin section.. 926 Parrish). .... 1139 Transformation of coordinates- Wager,L.R...... 1072 'Walrlstrom, axinite. (Donnay). 621 E. E. Octahedral part- Transfusion of. quartz xenoliths in ing on galena from Boulder, alkali basic and ultra basic Colorado. 906 lavas, southwest Uganda. Walls,R...... 1072 (Holmes) 68 Weissenbergtreatment of crystals Transfusion of quartzite. (Rey- belonging to the oblique sys- nolds).. 68 tems.(Buerger)...... 2lO 'West, Trend of mineralogical research. C. D. Crystallography of (Tarr).. ...206,869 herapatlite...... 731 Triclinic crystals, nonnal setting Whitehouse,M. J.. . 809 1202 THE AM ERICAN M I NERALOGIST

Wiikite (alpha and beta) (Ant- riimerite. 736 Wuorinen) . . 1131 Wolff, J. E. Hastingsite in theralite Wilcox, R, with Emmons, R. C. fuomCrazyMts.,Montana .. 742 Mineralogic study of silicosis. Wollastonite solid-solutions from . . .207,256 Scawt Hill, Co. Antrim' Wild. G. O. Praktikum der Edel- (Tilley) 1072 'Woodhouseite, steinkunde.[Bookreview].... 145 a new mineral of Wilson, R. W. Heavy accessory the beudantite grouP. (Lem- minerals of the Val Verde mon).. 939 tonalite. 122 Winchell,A. N. Cordierite...... 1175 Yaeckel, M. P., Howell, D. H. Optical properties of seig- with Kennard, T. G. Spectro- netteandrelatedsalts..... 1088 scopicexamination of colorless Further studies of the zeo- andbluehalite 65 lites...... 85,206 Young, J. A., Jr. with Quinn' A. Elements of optical min- Minerals and associatedrocks eralogy...... 810 at Copper Mine llitrl' Rh. 'Winchell, [Bookreview] H. New method of inter- Island. 279 pretation of petrofabric dia- grams.. 15 Zeolites, further studies of. (Wio- 'Wolfe, C. W. Reorientation of chell).. ...85,206