﻿INDEX. 
  

  

  663 
  

  

  Oberhelman, 
  G. 
  O., 
  preparation 
  of 
  

   tellurous 
  acid, 
  399. 
  

  

  OBITUARY. 
  

  

  Avebury, 
  Lord, 
  90. 
  

  

  Credner, 
  H., 
  576. 
  

  

  Eastman, 
  J. 
  R., 
  576. 
  

  

  Hallock, 
  W., 
  90. 
  Hartley, 
  W. 
  N., 
  

   576. 
  Holzapfel, 
  E., 
  186. 
  

  

  Kittl, 
  E., 
  90. 
  

  

  Laspeyres, 
  H., 
  576. 
  

  

  MacFarlane, 
  A., 
  576. 
  Macgregor, 
  

   J. 
  G., 
  90. 
  Marshall, 
  H., 
  576. 
  

   Milne, 
  J., 
  576. 
  

  

  Preece, 
  W. 
  H., 
  659. 
  

  

  Rockwood, 
  C. 
  R., 
  576. 
  

  

  Sclater. 
  P. 
  L., 
  576. 
  

  

  Wallace, 
  A. 
  R., 
  659. 
  

  

  Weber, 
  H., 
  576. 
  

   Observatory, 
  Allegheny, 
  89 
  ; 
  Astro- 
  

   physical, 
  65Q 
  ; 
  Carothers, 
  89 
  ; 
  De- 
  

   troit, 
  89. 
  

   Ohio, 
  Devonian 
  formation, 
  Prosser, 
  

  

  82. 
  

   — 
  geol. 
  survey, 
  80. 
  

   Optical 
  bench, 
  Farwell, 
  473. 
  

   Optics, 
  Geometrical, 
  Southall, 
  649. 
  

   Ore 
  deposits 
  of 
  Pkilipsburg, 
  Mont., 
  

  

  Emmons 
  and 
  Calkins, 
  656. 
  

  

  Pacinotti, 
  A., 
  Macchinetta 
  Elettro- 
  

   magnetica, 
  424. 
  

  

  Page, 
  L., 
  photoelectric 
  effect, 
  501. 
  

  

  Palache, 
  C., 
  crystallization 
  of 
  wil- 
  

   lemite, 
  639. 
  

  

  Paleontology, 
  new 
  periodical, 
  655. 
  

  

  Patterson, 
  R. 
  A., 
  arc 
  spectrum 
  of 
  

   tellurium, 
  135. 
  

  

  Perret, 
  F. 
  A., 
  Kilauean 
  formations, 
  

   151 
  ; 
  vertical 
  motion 
  seismographs, 
  

   297 
  ; 
  volcanic 
  research 
  at 
  Kilauea. 
  

   475 
  ; 
  ascent 
  of 
  lava, 
  605. 
  

  

  Peru, 
  Yale 
  Expedition, 
  supposed 
  pre- 
  

   historic 
  human 
  remains. 
  Bingham 
  , 
  1 
  ; 
  

   vertebrate 
  remains, 
  Eaton, 
  3; 
  grav- 
  

   els 
  at 
  Cuzco, 
  Gregory, 
  15; 
  see 
  also 
  

   141, 
  187. 
  

  

  Petrography, 
  microscopical, 
  Wright, 
  

   509. 
  

  

  Petrology, 
  Mennell, 
  426; 
  of 
  the 
  Blue 
  

   Hills, 
  Mass., 
  Warren, 
  655. 
  

  

  Phillips, 
  A. 
  H., 
  model 
  to 
  show 
  sym- 
  

   metry 
  of 
  crystals, 
  80. 
  

  

  Phillips, 
  F. 
  C, 
  Chemical 
  German, 
  

   646. 
  

  

  Photochemical 
  Investigations, 
  Plot- 
  

   nikow. 
  422. 
  

  

  Photoelectric 
  effect, 
  Page, 
  501. 
  

  

  Physical 
  measurements, 
  Dnff 
  and 
  

   Ewell, 
  649. 
  

  

  Physics, 
  Millikan 
  and 
  Gale, 
  423. 
  

  

  — 
  Practical, 
  Black 
  and 
  Davis, 
  566. 
  

  

  Physik, 
  Medizinische, 
  Fischer, 
  648. 
  

   Pirsson, 
  L. 
  V., 
  deep 
  boring 
  in 
  Ber- 
  

   muda, 
  70. 
  

   Planetologia, 
  Cortese, 
  428. 
  

  

  Radiation, 
  solar. 
  Very, 
  609. 
  

  

  Radium, 
  active 
  deposit 
  in 
  an 
  electric 
  

   field, 
  Wellisch, 
  315. 
  

  

  Rays, 
  see 
  Delta 
  rays, 
  Gamma 
  rays. 
  

  

  Reckert, 
  F. 
  C, 
  dehydration 
  and 
  re- 
  

   covery 
  of 
  silica, 
  598. 
  

  

  Richardson, 
  G. 
  B., 
  Paleozoic 
  section 
  

   in 
  northern 
  Utah, 
  406. 
  

  

  Ries, 
  C, 
  electric 
  properties 
  of 
  selen- 
  

   ium, 
  422. 
  

  

  ROCKS. 
  

  

  Alkali-granites 
  and 
  porphyries 
  of 
  

  

  Blue 
  Hills, 
  Mass., 
  Warren, 
  655. 
  

   Alkaline 
  rocks, 
  composition 
  and 
  

  

  origin, 
  Smyth, 
  33. 
  

   Gneisses 
  of 
  Laurentian 
  highlands, 
  

  

  Canada. 
  Wilson, 
  109. 
  

   Igneous 
  Rocks, 
  Iddings, 
  57 
  ; 
  Finlay, 
  

  

  573. 
  

   Lavas 
  from 
  Monte 
  Arci, 
  Sardinia, 
  

  

  Washington, 
  577. 
  

   Rhyolites, 
  trachytes, 
  etc., 
  Sardinia, 
  

  

  Washington, 
  577. 
  

   Rockwood, 
  E. 
  W., 
  Chemical 
  Analy- 
  

   sis, 
  74. 
  

   Rubidium 
  rays, 
  deviation, 
  Bergwitz, 
  

   564. 
  

  

  S 
  

  

  Salts, 
  dissolved, 
  influence 
  on 
  absorp- 
  

   tion 
  bands 
  of 
  water, 
  Jones, 
  Guy 
  

   and 
  Shaeffer, 
  76. 
  

  

  Sardinia, 
  lavas 
  from 
  Monte 
  Arci, 
  

   Washington. 
  577. 
  

  

  Schaller, 
  W. 
  T., 
  custerite, 
  385. 
  

  

  Sealing 
  wax 
  as 
  source 
  of 
  lime 
  for 
  

   Wehnelt 
  cathode, 
  Hornor. 
  

  

  Seismographs, 
  vertical 
  motion, 
  Per- 
  

   ret, 
  297. 
  

  

  Selenium, 
  electric 
  properties, 
  Ries, 
  

   422. 
  

  

  Semon, 
  R., 
  die 
  Vererbnng 
  " 
  Erwor- 
  

   bener 
  Eigenschaften,-' 
  314. 
  

  

  Shannon, 
  E. 
  V., 
  plattnerite 
  in 
  Idaho, 
  

   427. 
  

  

  Silica, 
  minerals, 
  stability 
  relations 
  

   of, 
  Fenner. 
  331 
  . 
  

  

  Smith, 
  E. 
  F., 
  Chemistry, 
  646. 
  

  

  Smithsonian 
  Institution, 
  annual 
  re- 
  

   port. 
  658. 
  

  

  Smyth, 
  C. 
  H., 
  Jr., 
  composition 
  and 
  

   origin 
  of 
  alkaline 
  rocks, 
  33. 
  

  

  Solar 
  radiation, 
  Very, 
  609. 
  

  

  Southall, 
  J. 
  P. 
  C, 
  Geometrical 
  Op- 
  

   tics. 
  649. 
  

  

  Spectrograph, 
  quartz, 
  Hutchins, 
  328. 
  

  

  Specific 
  Gravity 
  of 
  Saline 
  Solutions, 
  

   etc., 
  Buchanan, 
  421. 
  

  

  