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Download the Scanned INDEX TO VOLUME 31 Leading articles are in bold face type; notes, abstracts and reviews are in ordinary type. Only mineralsfor which definite data are given are indexed. Acnite occurrences on tle Cuyuna with Palache, C. Clino- Range, 1Y1inn.(Grout) 125 clasite. .203.243 Adamite. new occurrence of. 190 (Mayers,Wise). 599 Beryllium and tantalum pegma- Ahlfeldite. (Herzenberg) 86 tites of Colorado. (Hanley). 196 Allen, V. T. and Fahey, J. J.. 189 Beryllium in pegmatites of west- and Scheid, V. E. Non- tern Montana, spectrographic konite in the Columbia River prospectingfor. (Perry, Cooke) 499 Region.. .189,294 Beryllium minerals,simple test for Alpha index of refraction in mi- detectionof. (Fletcher,White) 82 caceous minerals. measure- Betekhtin.A. G.. 85 ment of. (Lindberg) 317 Biological problems and crystallo- Anblygonite and petalite from graphic principles. @rinch). 513 Karibib, S.W. Africa. (Nel) . Bismuth minerals in Colorado and pegmatites. Amon, W. F., Jr.. 513 New Mexico (Heinrich) Analcime from Benton County, 198 origin of spheroidal clusters of. Bond, W. L. Computation of inter- (Staples). 574 facial angles, interzonal angles projection Analcite, x-ray d,ata. 360 and clinographic by matrixmethods............ 31 Armstrong, E. Relation between Bradley,W.F... ........ 195 secoodar5r Dauphin6 twinning Brammallite,x-ray data......... 361 and irradiation-coloring in pegma- q1u'artz. 456 Branchville, Connecticut, tite. (Shainin) .....329, 598 Arsendides of nickel and cobalt Braunite from Snowmass, Pitkin at Franklin, N.J. (Holmes). 198 Co., Colorado.@ogers).. .205,561 Artinite from Luning, Nevada. Brazilianite, additional data on. (Hurlbut). 365 (Hurlbut, Weichel) 507 Axelrod, M.. J. 193 Bromine, occutrence of, in carnal- Axinite. (Optical data). 380 lite and sylvite from Utah and New Mexico. (Lindberg).. .199, 486 Baker, G. Microscopic qluartz Buerger,M.J... ........ 190 crystals in brown coal, Vic- toria... 22 Caillbre,S...... 409 Ball, S. H. Diamond production. 135 Calkins, F. C. Picking up grains. 503 Barth, T. F. W.. 85 Cameron,E. N.. l9l Bascom, Florence, memorial of. Cassiterite, contact metamorphic (Knopf). 168 deposits in California. (Page) 202 Bastinite, a new pegmatite phos- Champaygne,E. F... 511 phate.(Fisher) .. .. 192 Chayes, F. Linear analysis of a Bates,T. F...... 190 medium-grained granite. .191, 261 Bauxite "eggr." (Kerr). 199 Chevkinite (tschefrkinite) from Bear,R.S...... 508 Arizona. (Kaufiman, Jafie). 582 Berry, L. G. arrd Hawley, J. E, Chloritoirl as a hydrothermal min- with Whitmore, D. R. E. eral in igneous rocks. (Gus- Cbrome micas. 1 tafson). 313 607 608 INDEX Christensenite.(Brath,Kvalheim). 85 Gem diamonds.(Kaplan). ..... 139 Chrome micas. (Whitmore, BerrS Bonded diamond wheel apPlica- Eawley). 1 tions. (Klein, VaaRiPer).141, 199 Chromite, chemical correlation of, Vector hardness itr diamond with containing rocks. tools. (Whittaker, Slawsoo) (Thayer) 207 . .143,208 Chromite deposits of Camaguey Observations on orientation and Province, Cuba. (Guild, Flint) t96 hardness variations. $fh- Chromium silicate in iron ores of chell).. ...149,209 Marquette and Gogebic Preparation and standardization ranges,Mich. (Gruner)...... 195 of diamond powders. (InsleY' Clinoclasite. (Palache, Berry). .203, 243 Steierman). ......153, 198 Clinoclasite from Majuba Hill, Application of high voltage arc Nevada.(Gianella). ........ 259 to cutting, sawing and drilling Composite pegmatites of the diamonds.(Peters). ....156, 2Q4 Franklin-Sylva mica district, Controlled electrolytic tlrilling N. Carolina.(Heinrich)...... 197 of diamonds.(Emerson)...160, 191 Concretions from Pittsburgh coal Developments and trends in use seam, with special referetrce of industrial diarnonds. (Slaw- ...163,206 to analcite. @oster, Feicht) 193,357 son)... Cooke, S. R. B. with Perry, E. S. Dickite and chromium silicate in Spectrographicprospecting f or iron ores of the Marquette and beryllium in pegmatites of Gogebic Ranges, Mich. 195 western Montana. 499 (Gruner) move- Cornetite and pseudomalachite. Dikes antl displacement sedi- (Berry) 190 ments, efiects of' on ments ir Capitan quadrangle, CrystallographicSociety. .84, 508 New Mexico.(Sidwell)...... 65 Crystallography, a common Discreditedspecies. 409 ground in many sciences. Donnay, D. H. .191,508 (Fankuchen) ........ 509 J. Drusy wgs in monzonite diket l-cystine, crystallography of. Bearpaw Mts., Montana. (West, Amon) 513 (Pecora, Fisher). 370 Dana's Systemof Mineralogy,vol. Electrically heated platinum wire 1, seventhedition, corrections for use in mineralogical lab- to.(Frondel) ........ 589 oratory.(Milton, Spicer)..'.. 401 Dauphin6 twinning in quartz, sec- Emerson, W. B. Conkolled elec- ondary, produced by sawing. trolytic rlrilting of diamotrds. 160, 191 (Fronalel). ..58, 194 Epidote(Optical data).......... 380 DauPhins fYinnfug, secondar' and Error, maximum, in some min- irradiation-coloring in quartz eralogic computations. (Fair- (Armstrong). 456 bairn,Sheppard)... 191 Davidson, N. with Milton, C. Evans, H. T,, Jr.. 509 Straw-silica glass from Cali- fornia. 495 Fahey,J. J. .... ........ 189 Delafossite, notes on the skucture FBirbairn, H. W., and Sheppard, of.(PabsD. .......202,539 c. w... r9r Diamond symposium, third. Fankuchen,I...... 509 Introduction.(Kraus).. ....... 135 Feicht, F. L., with Foster, W. D. Diamond production. (Ball).... 135 Mineralogy of concretions INDEX 609 from Pittsburgh coal seam German mineralogists and geolo- with special reference to anal- gists.(Wayland)..... 595 cite.... ...193,357 Gianella, V. P. Cl.inoclasite from Fersman, Alexander E., mernorial MajubaHill,Nevada....... 259 of. (Spencer) 173 Giorgiosite. (Cailldre) 409 Fisher, B., with Pecora, W. T. Gnomonic and heptarial two-circle Drusy vugs in monzonite dike, calculation. (Parsons). .203, 547 Bea4law Mts., Mont. 370 Goldich,S.S.... ...... 198 Fisher, D. J. 192 Gordon,S.G... .. 510 Fleischer,M..... ........ 193 Goudey, Hatfield. An occurrence Fletcher, Mary H., and White, of wapplerite in Nevada . 598 C. E. Simple test for detection Granitic pegmatites, internal ofberylliumminerals....... 82 structure of. (Cameron,Jahns, Flint,D.E..... ........ 196 McNair, Page).. 191 FIow skucture models, construc- Grr'ffitts,W. R.. 194 tion and study of, from field Grigoriev, D. P. The 130th anni- rlata.(Lowe) ......199,346 versary of the Russian Min- Foster, W. D., and Feicht, tr'. L. eralogicalSociety. 601 Mineralogy of concretions Grim,R.E...... ........ 195 fron Pittsburgh coal seam, Griphite, new occurrenceof. (Anal- witl special reference to anal- ysis and x-ray data) (Jatre). 40a cite.... ...193,357 Grogan, R. M. Pyromorphite oc- Foster,W. R...... 193 currencein Illinois. 320 Fourier projections,use of sand in Grout, F. R. Acmite occrurences making. (Mclachlan, Cham- on the Cuyuna Range, Minne- paygne) 511 sota... 125 Fourier series, approximate sum- Gruner,J. W... ......195,196 mation of. (Lukesh) 510 Guild,P.W..... ......;. 196 Fourier series, graphical summa- Gustafson, J. K. Chloritoid as a tion of. (Lukesh) 510 hydrothermal mineral in ig- Franquenite. (Van Tassel) 327 neousrocks. ........ 313 Frondel, C. Correctionsto Dana's System of Mineralogy, volume Hanley,J.B;.. .......196,197 one, SeventhEdition. 589 Hawkes, H. 8., Jr. Olivine from northern California showing Secondary Dauphin6 twin- perfectcleavage..... 276 ning in quartz produced by Hawley, E,, with Whitmore, sawing. Irradiation of twinned J. D. R. E., and Berry, L. G. qtarlz. ....58, 194 Chrome micas. 1 Frye,J. C...... 207 Heinrich,E. W.. ....194, 197,198 Fuchsite, *-ray and chernical data. 4 - Second discovery of in- Fuchite, optical data. 13 derite.. 7l Hendricks,S. B.. 198 Gau1t,H.R...... 194 - with Ross, Clarence S. Gem stones, r-ray irradiation of. Minerals of the Montmoril- (Pough, Rogers) 205 lonite group. (Book review). 603 Geochemistry, modern aspects of, Herzenberg,R....,. 86 and application to economic High temperature thermal effects geology.(Stadnichenko)...... 206 of clays and related minerals. *:i""*: (Grim,Bradley)..... 195 "*t:Tl I1*u"3,.,,n Holmes,R. J.. 198 610 INDEX Hornblende,optical and crystallo- Bonded diarnond wheel appli- graphic data and chemical cations. .141,199 analysis. 378 Knopf, E. B. Memorial of Florence Howard, Harry J. Revised Lap- Bascom. 168 idary Handbook. (Book re- Kostyleva, E. E.. 514 view). 604 Kraus, Edward H. (Book review). 604 Hurlbut, C. S., Jr. Artinite frorn Diamond symposium, h- Luning, Nevada. 365 troductory statement. f35 Influence of twinning on Kvalheim,A...... 85 the usability of quartz from various localities 443 Landes, K. K. Geological mineral- - and Weichel, E. J. Addi- ogy.... ...131,189 tional data on brazilianite. 507 Lattice in crystallography. (Don- Hydrodolomite and hydrogiober- nay). 508 tite (discredited).(Cailldre). 409 l-cystine(West, Amon) 513 Leadhillite,twinning in. (Gordon). 510 Inderite, second discovery of. Leatham,E...... 199 (Heinrich). 7| Lester, J. G. Inclusions in mus- Insley, f[., and Steierman, B. L. covite from Mitchell Creek Preparation and standardiza- Mine, Upson Co., Georgia... 77 tion of diamond powders..153, 198 Lindberg, M. L. Measurement of Interference figures, chart for alpha index of refraction in measurement of. (IVinchell). 43 micaceousminerals......... 317 Iron minerals in Pennsylvania fire Occurrence of bromine in clays, occurrence and dis- ca::nallite and sylvite from tributionof. (Leatham)...... 199 Utah and New Mexico. 199,486 Irradiation of twinned quartz. Lineage structure in some syn- (Frondel). 58 thetic crystals, effect of tem- Isostructural
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