﻿CLAYS 
  OF 
  NEW 
  YORK 
  

  

  649 
  

  

  obtained 
  mostly 
  from 
  the 
  World's 
  Columbian 
  exposition, 
  some 
  of 
  

   these 
  being 
  made 
  to 
  show 
  the 
  strength 
  of 
  the 
  same 
  kind 
  of 
  bricks 
  

   when 
  tested 
  in 
  different 
  positions. 
  {Tests 
  of 
  metals, 
  1894, 
  United 
  

   States 
  war 
  department) 
  

  

  Testa 
  made 
  to 
  show 
  relative 
  strength 
  of 
  brick^ 
  according 
  to 
  the 
  

  

  direction 
  in 
  which 
  tested 
  

  

  Hight 
  

  

  Surface 
  

   area 
  

  

  Inches 
  

  

  Sq. 
  inches 
  

  

  2.16 
  

  

  27.63 
  

  

  2.10 
  

  

  27.26 
  

  

  2.19 
  

  

  27.77 
  

  

  2.21 
  

  

  27.90 
  

  

  BRICKS 
  TESTED 
  FLATWISE 
  

  

  Ultimate 
  strength 
  

  

  Total 
  

   Pounds 
  

  

  308 
  400 
  

   367 
  800 
  

   298 
  500 
  

   259 
  200 
  

  

  Per 
  square 
  

   inch. 
  

  

  Pounds 
  

  

  11 
  162 
  1 
  

  

  13 
  492 
  

  

  Average 
  

  

  Pounds 
  

  

  10 
  749 
  I 
  

  

  9 
  290 
  j 
  

  

  1^ 
  11 
  173 
  

  

  BRICKS 
  TESTED 
  EDGEWISE 
  

  

  Hight 
  

  

  Surface 
  

   area 
  

  

  Ultimate 
  strength 
  

   Total 
  ^^'"inJh^'"^ 
  

  

  Average 
  

  

  Inches 
  

  

  Sq. 
  inches 
  

  

  Pounds 
  Potmds 
  

  

  PoUndH 
  

  

  3.58 
  

  

  16.37 
  

  

  124 
  800 
  7 
  623^ 
  

  

  

  3.60 
  

   3.57 
  

  

  17.15 
  

   16.98 
  

  

  159 
  100 
  9 
  277 
  

   114 
  000 
  6 
  714 
  1 
  

  

  8 
  978 
  

  

  3.48 
  

  

  16.54 
  

  

  203 
  400 
  12 
  297 
  j 
  

  

  

  7.73 
  

  

  7.72 
  

   7.75 
  

   7.71 
  

  

  BRICKS 
  TESTED 
  EXDWISE 
  

  

  7.37 
  59 
  200 
  8 
  032^ 
  

  

  7.83 
  45 
  700 
  5 
  837 
  I 
  

  

  7.85 
  51 
  600 
  6 
  573 
  j' 
  

  

  7.54 
  54 
  800 
  7 
  268 
  j 
  

  

  6 
  927 
  

  

  