﻿4:14 
  H. 
  L. 
  Ward 
  — 
  Notice 
  of 
  an 
  Aerolite. 
  

  

  have, 
  however, 
  obtained 
  for 
  Ward's 
  N'atural 
  Science 
  Establisli- 
  

   ment 
  various 
  fragments 
  through 
  the 
  agency 
  of 
  Mr. 
  Price 
  and 
  

   consequently 
  are 
  able 
  to 
  describe 
  the 
  stone. 
  

  

  It 
  is 
  of 
  a 
  light 
  ash-gray 
  color, 
  exceedingly 
  friable 
  ; 
  and 
  cov- 
  

   ered 
  with 
  a 
  black 
  crust 
  averaging 
  about 
  V^^ 
  in 
  thickness, 
  

   though 
  in 
  some 
  parts 
  reaching 
  fully 
  2"'™, 
  which 
  varies 
  from 
  

   comparatively 
  smooth 
  in 
  parts 
  to 
  wave-like 
  crests 
  on 
  others. 
  

  

  The 
  stone 
  is 
  very 
  chondritic 
  in 
  structure; 
  with 
  the 
  largest 
  

   chondrules, 
  composed 
  of 
  acicular 
  crystals 
  of 
  enstatite, 
  3"'"" 
  in 
  

   diameter, 
  sparingly 
  distributed 
  through 
  it. 
  The 
  greater 
  num- 
  

   ber 
  of 
  the 
  chondrules 
  are 
  much 
  smaller 
  ; 
  and 
  many 
  are 
  very 
  

   minute. 
  An 
  optical 
  examination, 
  without 
  the 
  use 
  of 
  polarized 
  

   light, 
  shows 
  the 
  presence 
  of 
  enstatite, 
  chrysolite, 
  some 
  feld- 
  

   spar, 
  troilite 
  and 
  iron. 
  The 
  troilite 
  and 
  iron 
  are 
  dispersed 
  

   quite 
  evenly 
  and 
  thickly 
  as 
  small 
  irregularly- 
  shaped 
  grains. 
  

   The 
  specific 
  gravity, 
  taken 
  from 
  a 
  large 
  fragment 
  of 
  the 
  stone 
  

   without 
  crust, 
  is 
  3'558. 
  No 
  veins 
  appear 
  in 
  the 
  portions 
  exam- 
  

   ined. 
  Apparently 
  this 
  stone 
  belongs 
  to 
  Meunier's 
  group 
  (33) 
  

   called 
  Montrejite. 
  

  

  The 
  name 
  proposed 
  for 
  this 
  aerolite, 
  Allegan, 
  is 
  fortunate 
  in 
  

   that 
  it 
  is 
  at 
  once 
  the 
  name 
  of 
  the 
  town 
  and 
  of 
  the 
  county 
  in 
  

   which 
  it 
  fell. 
  

  

  J^ote. 
  — 
  Since 
  the 
  above 
  was 
  written 
  I 
  have 
  learned 
  that 
  the 
  

   larger 
  mass 
  of 
  this 
  aerolite 
  is 
  now 
  in 
  the 
  U. 
  S. 
  National 
  

   Museum 
  at 
  Washington. 
  

  

  