﻿H. 
  L. 
  Preston 
  — 
  Oakley, 
  Kansas, 
  Meteorite. 
  411 
  

  

  The 
  sections 
  have 
  also 
  numerous 
  fissures 
  extending 
  across 
  

   their 
  surfaces, 
  following 
  somewhat 
  the 
  rounded 
  outline 
  of 
  the 
  

   exterior 
  of 
  the 
  sections. 
  These 
  fissures 
  were 
  probably 
  caused 
  

   by 
  the 
  contact 
  with 
  the 
  earth's 
  crust 
  at 
  the 
  time 
  of 
  its 
  fall. 
  

  

  By 
  carefully 
  powdering 
  and 
  repowdering 
  18 
  grams 
  of 
  this 
  

   stone, 
  and 
  separating 
  the 
  iron 
  from 
  the 
  silicates 
  by 
  a 
  magnet, 
  

   we 
  found 
  the 
  ratio 
  of 
  the 
  metallic 
  part 
  to 
  the 
  silicates 
  as 
  

   follows 
  : 
  

  

  ., 
  , 
  ir 
  \ 
  Fe._ 
  12-76 
  

  

  Metallic 
  part 
  Ni 
  + 
  Co... 
  1-68 
  

  

  14-44 
  

   Silicates 
  ___ 
  85-56 
  

  

  1C000 
  

  

  An 
  analysis 
  of 
  the 
  metallic 
  part 
  by 
  Mr. 
  J. 
  M. 
  Davison 
  of- 
  

   Reynolds 
  Laboratory 
  gave 
  

  

  Fe 
  89-16 
  

  

  Ni 
  10-84 
  

  

  100-00 
  

   Specific 
  gravity, 
  3*7. 
  

  

  Dr. 
  Geo. 
  P. 
  Merrill 
  of 
  the 
  U. 
  S. 
  National 
  Museum, 
  to 
  whom 
  

   I 
  sent 
  a 
  few 
  fragments 
  of 
  this 
  stone, 
  kindly 
  made 
  sections 
  of 
  

   some 
  and 
  examined 
  them 
  for 
  me. 
  " 
  He 
  found 
  that 
  the 
  stone 
  

   belongs 
  to 
  the 
  chondritic 
  olivine-enstatite 
  type, 
  though 
  the 
  

   chondritic 
  structure 
  to 
  the 
  unaided 
  eye 
  is 
  somewhat 
  obscure, 
  

   well 
  defined, 
  spherical 
  chondrules 
  being 
  few 
  and 
  widely 
  scat- 
  

   tered. 
  In 
  general 
  appearance 
  it 
  closely 
  resembles 
  the 
  Pipe 
  

   Creek, 
  Bandera 
  County, 
  Texas, 
  aerolite, 
  but 
  is 
  of 
  finer 
  grain. 
  

   Under 
  the 
  microscope 
  it 
  presents 
  no 
  features 
  not 
  common 
  to 
  

   aerolites 
  of 
  this 
  class 
  — 
  olivine 
  and 
  enstatite 
  chondrules 
  imbedded 
  

   in 
  a 
  very 
  irregularly 
  granular 
  groundmass 
  of 
  the 
  same 
  mate- 
  

   rials, 
  with 
  numerous 
  particles 
  of 
  metallic 
  iron 
  and 
  iron 
  sul- 
  

   phides. 
  The 
  chondrules 
  present 
  the 
  characteristic 
  barred 
  (or 
  

   grate) 
  and 
  fan- 
  shaped 
  structures, 
  and 
  are 
  often 
  themselves 
  

   fragmental. 
  The 
  structure 
  is 
  on 
  the 
  whole 
  very 
  obscure, 
  and 
  

   more 
  closely 
  resembles 
  that 
  of 
  Pipe 
  Creek, 
  as 
  above 
  mentioned, 
  

   than 
  any 
  other 
  of 
  which 
  we 
  have 
  slides. 
  No 
  silicate, 
  other 
  

   than 
  olivine 
  and 
  enstatite, 
  could 
  be 
  determined 
  in 
  the 
  slides, 
  

   but 
  the 
  solution 
  obtained 
  by 
  digesting 
  the 
  powdered 
  stone 
  in 
  

   dilute 
  hydrochloric 
  acid 
  contained 
  a 
  trace 
  of 
  lime 
  and 
  alumina, 
  

   suggesting 
  the 
  presence 
  of 
  a 
  lime 
  or 
  a 
  lime 
  soda 
  feldspar." 
  

  

  The 
  stone 
  would 
  thus 
  belong 
  to 
  the 
  Meunier 
  type 
  34, 
  

   Erxlebenite. 
  

  

  Its 
  nearest 
  prominent 
  geographical 
  point 
  being 
  Oakley. 
  It 
  will 
  

   be 
  designated 
  as 
  the 
  Oakley 
  meteorite 
  (Logan 
  County, 
  Kansas). 
  

  

  