﻿CONTENTS 
  OF 
  VOLUME 
  XLIL 
  

  

  Number 
  247. 
  

  

  Page 
  

  

  Akt. 
  I. 
  — 
  The 
  Solar 
  Corona, 
  an 
  instance 
  of 
  the 
  Newtonian 
  

   Potential 
  Function 
  in 
  the 
  case 
  of 
  Repulsion 
  ; 
  by 
  F. 
  H. 
  

  

  BlGELOW 
  . 
  _ 
  _ 
  1 
  

  

  II. 
  — 
  Newtonite 
  and 
  Rectorite 
  — 
  two 
  new 
  minerals 
  of 
  the 
  

  

  Kaoliuite 
  Group 
  ; 
  by 
  R. 
  N. 
  Brackett 
  and 
  J. 
  F.Williams 
  11 
  

   III. 
  — 
  Intensity 
  of 
  Sound 
  — 
  II. 
  The 
  Energy 
  used 
  by 
  Organ 
  

  

  Pipes 
  ; 
  by 
  Charles 
  K. 
  Wead 
  21 
  

  

  IV. 
  — 
  New 
  Analyses 
  of 
  Astrophyllite 
  and 
  Tscheffkinite 
  ; 
  by 
  

  

  L. 
  G. 
  Eakins 
  - 
  - 
  34 
  

  

  V. 
  — 
  Minerals 
  in 
  hollow 
  Spherulites 
  of 
  Rhyolite 
  from 
  Glade 
  

  

  Creek, 
  Wyoming 
  ; 
  by 
  J. 
  P. 
  Iddings 
  and 
  S. 
  L. 
  Penfield 
  39 
  

   VI. 
  — 
  Bernardinite 
  : 
  Is 
  it 
  a 
  Mineral 
  or 
  a 
  Fungus 
  ? 
  ; 
  by 
  Joseph 
  

  

  Stanley 
  Brown 
  46 
  

  

  VII. 
  — 
  Development 
  of 
  Bilobites; 
  by 
  Charles 
  E. 
  Beecher. 
  

  

  (With 
  Plate 
  I.) 
  _.. 
  . 
  51 
  

  

  VIII. 
  — 
  Gmelinite 
  from 
  Nova 
  Scotia; 
  by 
  Louis 
  V. 
  Pirsson. 
  57 
  

   IX. 
  — 
  Analyses 
  of 
  Kamacite, 
  Taenite 
  and 
  Plessite 
  from 
  the 
  

  

  Welland 
  Meteoric 
  Iron 
  ; 
  by 
  John 
  M. 
  Davison 
  64 
  

  

  SCIENTIFIC 
  INTELLIGENCE. 
  

  

  Chemistry 
  and 
  Physics 
  — 
  Speed 
  of 
  the 
  Explosive 
  wave 
  in 
  Solid 
  and 
  Liquid 
  Bodies, 
  

   Bekthelot 
  : 
  Relation 
  between 
  the 
  Electrical 
  Energy 
  and 
  the 
  Chemical 
  Energy 
  

   in 
  Voltaic 
  cells, 
  Levay, 
  66. 
  — 
  Action 
  of 
  Heat 
  on 
  Carbon 
  Monoxide, 
  Berthelot: 
  

   Electro-metallurgy 
  of 
  Aluminum, 
  Minet, 
  67. 
  — 
  Detection 
  of 
  metallic 
  Mercury 
  in 
  

   cases 
  of 
  Poisoning, 
  Lecco 
  : 
  Tetrazotic 
  acid 
  and 
  its 
  Oxy- 
  and 
  Di-oxy 
  derivatives, 
  

   Lossen, 
  68. 
  — 
  Polar 
  light 
  and 
  Cosmic 
  dust, 
  Liveing 
  and 
  Dewar: 
  Phosphores- 
  

   cence, 
  "Wiedemann, 
  69. 
  — 
  Reflection 
  and 
  Refraction 
  of 
  light 
  by 
  thin 
  surface 
  

   layers, 
  Drude, 
  70. 
  

  

  Geology 
  and 
  Mineralogy 
  — 
  Annual 
  Report 
  of 
  the 
  State 
  Geologist 
  of 
  New 
  Jersey, 
  

   70. 
  — 
  Two 
  belts 
  of 
  fossiliferous 
  black 
  shale 
  in 
  the 
  Triassic 
  formation 
  of 
  Con- 
  

   necticut, 
  Davis 
  and 
  Loper, 
  72. 
  — 
  Illustrations 
  of 
  the 
  Fauna 
  of 
  the 
  St. 
  John 
  

   Group, 
  No. 
  V, 
  G. 
  F. 
  Matthew. 
  73. 
  — 
  Etudes 
  des 
  gites 
  mineraux 
  de 
  la 
  France, 
  

   R. 
  Zeiller, 
  75. 
  — 
  Genus 
  Sphenophyllum, 
  J. 
  S. 
  Newberry: 
  Annuaire 
  Geologique 
  

   Universel, 
  76. 
  — 
  Tables 
  for 
  the 
  Determination 
  of 
  Minerals, 
  P. 
  Frazer: 
  Mate- 
  

   rialien 
  zur 
  Mineralogie 
  Russlands, 
  N. 
  von 
  Kokscharow, 
  77. 
  

  

  Miscellaneous 
  Scientific 
  Intelligence 
  — 
  Yolcano 
  of 
  Kilauea: 
  American 
  Geological 
  

   Society, 
  77. 
  — 
  International 
  Congress 
  of 
  Geologists: 
  Physical 
  Observatory 
  at 
  

   the 
  Smithsonian 
  Institution. 
  Washington, 
  78. 
  

  

  Obituary 
  — 
  Charles 
  Arad 
  Jot. 
  78. 
  

  

  