﻿ARTICLE 
  XXVI 
  

  

  Notes 
  and 
  Diagrams, 
  illustrative 
  of 
  the 
  Directions 
  of 
  the 
  Forces 
  

   acting 
  at 
  and 
  near 
  the 
  surface 
  of 
  the 
  Earth, 
  in 
  different 
  parts 
  of 
  the 
  

   Brunswick 
  Tornado 
  of 
  June 
  1 
  9th 
  1835. 
  By 
  A. 
  D. 
  Bache, 
  Professor 
  of 
  

   Natural 
  Philosophy 
  and 
  Chemistry 
  in 
  the 
  University 
  of 
  Pennsylvania 
  ; 
  

   one 
  of 
  the 
  Secretaries 
  of 
  the 
  American 
  Philosophical 
  Society. 
  Read 
  

   April 
  2d 
  1836. 
  

  

  In 
  company 
  with 
  my 
  friend, 
  Mr 
  Espy, 
  I 
  visited, 
  in 
  the 
  early 
  part 
  of 
  

   July 
  last, 
  the 
  scene 
  of 
  the 
  destructive 
  tornado 
  of 
  June 
  1 
  9th, 
  the 
  ravages 
  

   of 
  which 
  had 
  been 
  most 
  severely 
  felt 
  in 
  New 
  Brunswick, 
  New 
  Jersey, 
  

   and 
  its 
  vicinity 
  ; 
  the 
  effects 
  extending 
  about 
  seven 
  and 
  a 
  half 
  miles 
  to 
  

   the 
  west, 
  and 
  ten 
  to 
  the 
  east 
  of 
  that 
  place. 
  The 
  idea 
  of 
  illustrating 
  

   these 
  effects 
  by 
  the 
  aid 
  of 
  instrumental 
  means, 
  first 
  occurred 
  to 
  me 
  

   after 
  hearing 
  an 
  interesting 
  account 
  by 
  professor 
  Johnson, 
  before 
  the 
  

   Academy 
  of 
  Natural 
  Sciences 
  of 
  this 
  city, 
  of 
  an 
  examination 
  made 
  by 
  

   professor 
  Henry 
  and 
  himself 
  of 
  the 
  position 
  of 
  materials 
  carried 
  by 
  the 
  

   storm 
  from 
  the 
  city 
  of 
  Brunswick, 
  and 
  deposited 
  in 
  a 
  field 
  on 
  the 
  

   opposite 
  bank 
  of 
  the 
  river 
  Raritan. 
  

  

  The 
  regularity 
  in 
  the 
  general 
  arrangement 
  of 
  these 
  materials 
  gave 
  

   me 
  the 
  hope 
  that 
  further 
  facts 
  of 
  interest 
  might 
  be 
  brought 
  to 
  light 
  by 
  

   an 
  examination 
  of 
  the 
  country 
  along 
  the 
  path, 
  and 
  fully 
  established, 
  as 
  

   well 
  as 
  clearly 
  represented 
  to 
  the 
  eye, 
  by 
  diagrams 
  laid 
  down 
  from 
  

   actual 
  measurement. 
  

   vol. 
  v. 
  — 
  5 
  E 
  

  

  